the worst that could happen is that they would expand their vocabulary some and gain knowledge of some earlier forms of speech and older words. How is that a problem?
Is it being suggested that it is unimportant for translations to be understandable by present typical readers?
Is it being suggested that the KJV translators were wrong not to use and keep many words found in the pre-1611 English Bibles of which it was a revision since it would have expanded the vocabulary of readers to have kept them?
Along with reducing the number of uses of several of the archaic words found in the pre-1611 English Bibles, the KJV completely removed some archaic, antiquated, rare, unusual, unclear, or difficult words or spellings along with a few other words found in one or more of the pre-1611 English Bibles. The KJV also removed or no longer used some words that would not be considered archaic today.
A list of words in the pre-1611 English Bibles, which are not found in the KJV, would include the following: “ableness” (2 Cor. 3:5), “abrech” (Gen. 41:43), “achat” (Exod. 39:12), “advoutry“ (Mark 7:21), “affianced” (Luke 1:27), “afterbirth“ (Deut. 28:57), “albs” (Lev. 8:13), “almery“ (Deut. 28:17), “almuggim“ (1 Kings 10:11), “arb” (Lev. 11:22), “arede” (Mark 14:65), “assoyl” (Matt. 21:24), “atone“ (2 Cor. 5:20), “badge“ (Acts 28:11), “banketed“ (Job 1:4), “beer“ (Isa. 24:9), “beneficial“ (Acts 19:24), “beweep“ (Deut. 21:13), “boldened“ (1 Sam. 13:12), “brain pan“ (Jud. 9:53), “brawn“ (Ps. 119:70), “breakfast“ (Heb. 12:16), “breastlap” (Exod. 25:7), “bruterer” (Exod. 25:7), “buballs” (1 Kings 4:23), “buggers” (1 Tim. 1:10), “bugle“ (Deut. 14:5), “bugs“ (Ps. 91:5), “burgesship“ (Acts 22:28), “byss” (Gen. 41:42), “calamite” (Exod. 30:23), “carpets“ (Prov. 31:22), “carrion“ (Lev. 5:2), “cavillation” (Luke 19:8), “cavillations“ (Lev. 19:13), “chaft bones“ (Prov. 30:14), “chevisance” (Deut. 21:14), “childishness“ (1 Cor. 13:11), “childship“ (Rom. 9:4), “christened“ (1 Cor. 1:14), “clippers“ (1 Sam. 25:11), “colled“ (Isa. 15:2), “commonalty“ (Lev. 4:13, “conjurers“ (Dan. 4:7), “consistory“ (Ps. 107:32), “cowcasins“ (Ezek. 4:15), “cratch” (Luke 2:7), “credence“ (Acts 8:12), “cressets“ (Jer. 25:10), “cupboards“ (Isa. 39:2), “deadoffering“ (Lev. 3:6), “debite” (Luke 20:20), “deedslayers” (2 Kings 14:6), “delectation“ (2 Cor. 12:10), “despicions” (Acts 28:29), “discomforted“ (Ezk. 13:22), “diseasest“ (Mark 5:35), “disposers“ (1 Cor. 4:1), “dissembling“ (Prov. 12:19), “doe“ (Prov. 6:5), “door checks [or cheeks]” (Isa. 6:4), “dukedoms“ (Gen. 36:30), “effusion“ (Heb. 11:28), “egalness“ (2 Cor. 8:14), “emmets“ (Prov. 30:25), “emperor“ (Luke 20:25), “endote” (Exod. 22:16), “equalness“ (2 Cor. 8:14), “erewhile“ (John 9:27), “examinedst“ (Rev. 2:2), “excellentness“ (Ps. 96:6), “expounders“ (Jer. 27:9), “falcon“ (Lev. 11:17), “fardels” (Acts 21:15), “field devils“ (2 Chron. 11:15), “fiend“ (Mark 5:15), “flackered“ (Ezek. 10:19), “flacket” (1 Sam. 16:20), “flaggy” (1 Sam. 15:9), “flawnes” (1 Chron. 23:29), “felicity” (Gal. 4:15), “flittings“ (Ps. 56:8), “foreby“ (Lam. 1:12), “fore elders“ (Prov. 22:28), “fortuned” (2 Chron. 5:11), “fortunes“ (2 Kings 21:6), “fraudulent“ (Ps. 119:134), “frayles” or “frailes” (1 Sam. 25:18), “frumenty” (Lev. 23:14), “gabis“ (Job 28:18), “galaries“ (Ps. 73:4), “gaoler” (Acts 16:23), “gard“ (Exod. 28:8), “gardes“ (Deut. 22:12), “ghostly“ (Rom. 8:5), “gloriousness“ (1 Cor. 2:1), “gnew“ (Rev. 16:10), “goers“ (Mark 6:31), “gorgeousness“ (Isa. 3:18), “goshawk“ (Lev. 11:13), “grece” (Acts 21:35), “grennes“ (Ps. 140:5), “groveling“ (1 Sam. 17:49), “hagab” (Lev. 11:22), “handreaching“ (Acts 11:29), “hangman“ (Mark 6:27), “harborous” (1 Tim. 3:2), “harbourless” (Matt. 25:35), “hargol” (Lev. 11:22), “hawthorn“ (2 Chron. 25:18), “healthful“ (Tit. 2:11), “healthoffering“ (Lev. 4:26), “heavengazers” (Isa. 47:13), “hedgehog“ (Lev. 11:30), “hilchapels“ (Amos 7:9), “hoared“ (Josh. 9:4), “hucklebone“ (Gen. 32:25), “huswiferie“ (Prov. 31:18), “idiot“ (Job 5:2), “ignorancies“ (Heb. 9:7), “Iims“ (Jer. 50:39), “improve“ (2 Tim. 4:2), “indwellers“ (Isa. 18:3), “inquirance“ (Acts 10:17), “incontinently“ (Mark 5:13), “inconvenient“ (1 Pet. 4:4), “inconvenience“ (Acts 28:6), “interrupted“ (1 Pet. 3:7), “intolerable“ (Exod. 8:24), “invocation“ (Ps. 89:26), “ixion“ (Deut. 14:13), “jakes” or “iakes” (2 Kings 10:27, Dan. 2:5, 3:29), “Jewship“ (Gal. 1:13), “knappeth“ (Ps. 46:9), “lamia“ (Isa. 34:14), “lamies“ (Lam. 4:3), “latten“ (Gen. 31:42), “lavatory“ (2 Chron. 4:10), “lay people“ (Acts 4:13), “lecture“ (Acts 13:15), “lever“ (1 Cor. 14:19), “library“ (Ezra 6:1), “ligurious“ (Exod. 28:19), “lither“ (Rom. 12:11), “loured” (Gen. 4:5), “luck“ (Gen. 30:11), “lucky“ (Gen. 39:2), “lusty bloods“ (2 Sam. 13:28), “lute“ (Ps. 144:9), “maidenhead“ (Jud. 11:38), “male stewes“ (1 Kings 15:12), “manchet” (1 Kings 4:22), “mandragoras” (Gen. 30:14), “manginess“ (Deut. 28:27), “manslaughter“ (Hos. 4:2), “manward“ (Titus 3:4), “marshal“ (Gen. 41:12), “maund” (Exod. 29:3), “meekened“ (2 Chron. 33:19), “meinie” (Gen. 22:3), “meked“ (James 3:7), “mercifulness“ (Rom. 12:1), “mirror” (2 Cor. 3:18) “misdoers“ (Isa. 53:12), “monstrous beasts“ (Isa. 34:14), “moon prophets” (Isa. 47:13), “mossell” (1 Cor. 9:9), “Muscatel“ (Isa. 27:1), “muzzling” (Deut. 32:2), “naughtipacks“ (Ps. 86:14), “nebb“ (Gen. 8:11), “neers“ (Isa. 34:6), “neverthelater“ (Lev. 7:24), “nigard“ (Isa. 32:6), “nigardness“ (Isa. 32:6), “nightcrow“ (Lev. 11:16), “nippers“ (Isa. 50:6), “obstinate“ (Jer. 5:23), “ohim“ (Isa. 13:21), “otemeel“ [oatmeal] (Prov. 27:22), “overbody“ (1 Sam. 23:9), “overhand“ (Hos. 4:2), “overscaped” (Lev. 19:10), “overskipped“ (Deut. 26:13), “overthwart” (Deut. 32:5), “overwinner“ (1 Sam. 15:29), “panier“ (Job 41:7), “parbreak” (Num. 11:20), “partlets“ (Acts 19:12), “patron“ (Acts 27:11), “pecks“ (Gen. 18:6), “penance“ (Matt. 3:8), “pensiveness“ (Ps. 77:3), “perceavaunce“ (Eph. 1:8), “perquellies” (2 Sam. 5:8), “pickt“ (2 Chron. 13:3), “pight“ (Heb. 8:2), “pill“ (2 Cor. 12:17), “pismire” (Prov. 6:6), “pitfall“ (Job 18:10), “plage” (Deut. 17:8), “pleck” (Lev. 13:4), “porphyry” (Est. 1:6), “possessioner“ (Micah 1:15), “prerogative“ (John 1:12), “puissant“ (Ps. 93:4), “pyght“ (Heb. 8:2), “quadrin“ (Mark 12:42), “querne” (Isa. 47:2), “quier” (1 Kings 6:5), “racked“ (Heb. 11:35), “rascal“ (Num. 11:4), “raynes“ (Rev. 19:8), “rebecks” (1 Sam. 18:6), “recreate“ (Ps. 94:19), “redebush” (Isa. 9:16), “redshanke“ (Deut. 14:16), “rickes“ (Jud. 15:5), “rigorousness“ (Rom. 11:22), “roomth“ (2 Sam. 22:20), “rowneth“ (Isa. 5:9), “rugagates” (Jud. 12:4), “rythe“ (Jer. 49:31), “sallets” (Jer. 46:4), “scrale” (Exod. 8:3), “seameaw“ (Lev. 11:16), “seditious“ (Ezra 4:12), “selaam“ (Lev. 11:22), “senator“ (Isa. 3:3), “sequester“ (Prov. 18:1), “sermon“ (Jer. 11:1), “sethim” (Deut. 10:3), “shalms“ or “shawms” (Ps. 98:6), “shope” (Gen. 2:7), “shrewd“ (Ps. 83:3), “simnel” (Exod. 29:23), “simulation“ (James 3:17), “slade” (1 Sam. 25:20), “slops” (Isa. 3:20), “smaragdus“ (Exod. 28:17), “Sodomward“ (Gen. 13:22), “softness“ (Phil. 4:5), “soleam“ (Lev. 11:22), “solicit“ (Prov. 6:3), “spangles“ (Num. 31:50), “sparrowhawk“ (Deut. 14:15), “sparsed“ (2 Cor. 9:9), “springalds“ (Dan. 1:4), “stackered“ (Rom. 4:20), “stambered“ (Mark 7:32), “stellio“ (Lev. 11:30), “stuffed“ (1 Sam. 19:13), “succourless“ (Prov. 31:8), “Sunday“ (1 Cor. 16:2, Rev. 1:10), “taxus” (Exod. 25:4), “terebinths“ (Isa. 6:13), “term“ (Ezek. 22:4), “testimonial“ (Luke 21:13), “toad“ (Lev. 11:29), “toot-hill“ (Gen. 31:48), “transitory“ (Prov. 31:8), “treacle” (Jer. 8:22), “trowel“ (Amos 7:7), “tufts” (Lev. 19:27), “tushe“ (Job 39:25), “tyranny“ (Job 3:17), “tyrants“ (Job 6:23), “unexpert“ (Heb. 5:13), “unfainedness“ (2 Cor. 8:8), “unghostly“ (1 Tim. 4:7), “unhealeth“ (Deut. 27:20), “unhele” (Lev. 18:16), “unlust“ (Isa. 43:22), “unquiet“ (Deut. 28:65), “unquieted“ (1 Sam. 28:15), “unquietness“ (Acts 24:18), “unright“ (Gen. 16:5), “unshodhouse“ (Deut. 25:10), “unthrifts“ (1 Sam. 30:22), “unthrifty“ (Prov. 6:12), “untractable“ (Titus 1:6), “untruss” (Isa. 47:2), “untruth“ (Ps. 89:35), “uplandish“ (Jud. 5:11), “valiantness“ (Ps. 18:32), “voluptuousness“ (Titus 3:3), “wallfish“ (Isa. 27:1), “wastels“ (Lev. 24:5), “wealthiness“ (Job 21:13), “weaponed“ (Prov. 6:11), “weeding“ (1 Sam. 13:20), “wenest” (Acts 8:20), “whale fish” (Job 7:12), “wherethrough“ (Dan. 2:1), “Whitsuntide“ (1 Cor. 16:8), “whore keeper” (Deut. 23:17), “wiliness“ (Ps. 10:2), “winegardeners“ (2 Chron. 26:10), “withoutforth“ (1 Chron. 26:29), “witsafe“ (Ps. 119:29), “workmasters“ (Jer. 24:1), “worthies“ (1 Chron. 11:26), “wrutt“ (Ps. 80:13), “yonderward” (1 Sam. 20:37), and “zijm“ (Isa. 13:21). There are likely other such words that could be included.