Here are some examples of the inconsistencies in the italics in KJV editions.
Deuteronomy 21:3 [italics] [same as Deut. 21:6 where man is in italics]
the slain man [1873 Cambridge] (2000, 2002 ZOND) (TPB) (HPB) (2007, 2008, 2010, 2011 HEND) (NHPB)
the slain man (1769 Oxford, SRB) [1629, 1769 Cambridge, DKJB]
1 Chronicles 18:16 [italics] [was added same as were before the priests] [This “was” not added in 1560 Geneva] [see 2 Sam. 8:17--was the scribe] [was the scribe--NKJV]
was scribe (1675, 1681, 1709, 1715, 1720, 1722, 1728, 1737, 1743, 1747, 1754, 1758, 1760, 1762, 1765, 1768, 1770, 1771, 1772, 1773, 1774, 1776, 1777, 1778, 1783, 1788, 1804 Oxford) [1629, 1635, 1637, 1638, 1648, 1683, 1743, 1747, 1756, 1760, 1761, 1762, 1763B, 1765, 1767, 1768, 1812, 1816, 1817, 1873 Cambridge] {1611, 1613, 1616, 1617, 1626, 1630, 1631, 1634, 1640, 1644, 1648, 1650, 1652, 1655, 1657, 1660, 1672, 1684, 1703, 1706, 1711, 1712, 1728, 1730, 1735, 1741, 1743, 1747, 1750, 1759, 1760, 1764, 1767, 1768, 1772, 1853, 1879 London} (1755 Oxon) (1637, 1638, 1715, 1722, 1751, 1756, 1760, 1764, 1766, 1769, 1787, 1791, 1793, 1802, 1806, 1820, 1827, 1842, 1843, 1858 Edinburgh) (1860, 1866 Glasgow) (1722, 1743, 1801 Dublin) (1645 Dutch) (1696, 1700 MP) (1746 Leipzig) (1774, 1777 Fortescu) (1776 Birmingham) (1776 Pasham) (1777 Wood) (1782 Aitken) (1785 Wilson) (1790 Bolton) (1792, 1821, 1831 Brown) (1802, 1815 Carey) (1803 Etheridge) (1816 Albany) (1816 Collins) (1816, 1848 Hartford) (1818 Holbrook) (1818, 1819, 1827, 1829, 1843, 1851 ABS) (1826 Boston) (1823, 1827 Smith) (1828 MH) (1832 PSE) (1832 Scott) (1832 Wilbur) (1835 Towar) (1836 Stebbing) (1841 Thomas) (1843 AFBS) (1845, 1854, 1876 Harding) (1846 Benson) (1846 Portland) (1848 IFB) (1910 Collins) (1924, 1958 Hertel) (2000, 2002 ZOND) (TPB) (HPB) (2007, 2008, 2010, 2011 HEND) (NHPB) (2024 FGWB) (1842 Bernard)
was scribe (1769 Oxford, SRB) [1769 Cambridge, DKJB] (1762 Dublin)
Psalm 75:5 [italics] [speak not with--1602 Bishops]
speak not with (1928, 1968 Oxford) [2005, 2011 Cambridge] {1611, 1613, 1614, 1616, 1626, 1630, 1631, 1640, 1644, 1650, 1652, 1655, 1660, 1795 London} (1637 Edinburgh) (1696, 1700 MP) (1799 Helston) (1843 AFBS) (1897 Mackail) (2003 EB) (2003 IGC) (2006 PENG) (2011 AMP) (2011 PJB) (NCE) (2013 CC) (2015 KAPPA)
speak not with (1675, 1679, 1681, 1709, 1713, 1715, 1720, 1722, 1728, 1737, 1746, 1747, 1754, 1758, 1762, 1765, 1768, 1770, 1771, 1772, 1773, 1776, 1777, 1778, 1783, 1799 Oxford) [1629, 1635, 1637, 1638, 1648, 1683, 1743, 1747, 1756, 1760, 1761, 1762, 1763B, 1765, 1767, 1768, 1873 Cambridge] {1634, 1648, 1657, 1672, 1674, 1684, 1703, 1706, 1711, 1712, 1728, 1730, 1735, 1741, 1743, 1747, 1750, 1759, 1760, 1761, 1764, 1767, 1768, 1772, 1853, 1879 London} (1755 Oxon) (1712, 1715, 1722, 1735, 1760, 1764, 1766, 1769, 1787, 1810, 1820, 1827, 1834, 1842, 1843, 1858 Edinburgh) (1866 Glasgow) (1762 Dublin) (1645 Dutch) (1746 Leipzig) (1774 Bristol) (1774, 1777 Fortescu) (1776 Birmingham) (1776 Pasham) (1777 Wood) (1782 Aitken) (1784 Piguenit) (1792, 1831 Brown) (1814, 1832, 1835 Scott) (1814 Woodward) (1818, 1819, 1827, 1830, 1831, 1843, 1850, 1851, 1853, 1855, 1858, 1868, 1888, 1894, 1902, 1954, 1956, 1957, 1963, 1968, 1970, 1971, 1984, 1988, 2004, 2008 ABS) (1826 Boston) (1832 PSE) (1835 Towar) (1836 Stebbing) (1846 Portland) (1839, 1845, 1857, 1876 Harding) (1848 Hartford) (1848 IFB) (1876 Porter) (1910 Collins) (1924, 1958 Hertel) (1948 WSE) (1970 TN) (WMCRB) (1984 AMG) (2000, 2002 ZOND) (TPB) (HPB) (2007, 2008, 2010, 2011 HEND) (NHPB) (2024 FGWB) (1842 Bernard)
speak not with (1769 Oxford, SRB) [1769 Cambridge, DKJB]
Proverbs 9:8 [italics] [see also wise man at Prov. 9:9, Prov. 1:5]
wise man (1679, 1681, 1709, 1715, 1720, 1747, 1749, 1754, 1758, 1762, 1765, 1768, 1770, 1771, 1772, 1773, 1774, 1777, 1778, 1783 Oxford) [1638, 1683, 1743, 1747, 1756, 1760, 1761, 1762, 1763B, 1765, 1767, 1768, 1873 Cambridge] {1684, 1689, 1703, 1706, 1712, 1730, 1735, 1741, 1743, 1747, 1750, 1759, 1760, 1763, 1764, 1767, 1768, 1772 London} (1755 Oxon) (1715, 1722, 1735, 1756, 1760, 1764, 1766, 1769 Edinburgh) (1762, 1801 Dublin) (1746 Leipzig) (1774, 1777 Fortescu) (1776 Birmingham) (1776 Pasham) (1777 Wood) (1782 Aitken) (1784 Piguenit) (1792 Brown) (1804 MH) (1839 Harding) (2000, 2002 ZOND) (TPB) (HPB) (2007, 2008, 2010, 2011 HEND) (NHPB) (2024 FGWB) [NKJV]
wise man (1737, 1769 Oxford, SRB) [1629, 1769 Cambridge, DKJB]
Isaiah 29:8 [italics] [compare hungry man in this same verse]
thirsty man (1679, 1681, 1709, 1715, 1720, 1737, 1743, 1747, 1754, 1758, 1762, 1764, 1765, 1768, 1770, 1771, 1772, 1773, 1774, 1777, 1778, 1783, 1804 Oxford) [1638, 1683, 1743, 1747, 1756, 1760, 1761, 1762, 1763B, 1765, 1767, 1768, 1812, 1816, 1817, 1873 Cambridge] {1660, 1689, 1703, 1706, 1711, 1712, 1717, 1730, 1735, 1741, 1743, 1747, 1750, 1759, 1760, 1763, 1764, 1767, 1768, 1772, 1811, 1853, 1879 London} (1755 Oxon) (1715, 1722, 1735, 1751, 1756, 1760, 1764, 1766, 1769, 1787, 1789, 1791, 1793, 1806, 1810, 1820, 1827, 1834, 1842, 1843, 1858 Edinburgh) (1860, 1866 Glasgow) (1722, 1743, 1762, 1801 Dublin) (1696, 1700 MP) (1746 Leipzig) (1774 Bristol) (1774 Fortescu) (1776 Birmingham) (1776 Pasham) (1777 Wood) (1782 Aitken) (1790 Bolton) (1790, 1804, 1828 MH) (1792, 1821, 1831 Brown) (1802, 1813 Carey) (1803 Etheridge) (1804 Blomfield) (1814, 1832, 1835, 1851, 1858 Scott) (1814 Woodward) (1816 Albany) (1816 Collins) (1818 Holbrook) (1818, 1819, 1827, 1829, 1830, 1843, 1851, 1853, 1854, 1855, 1858 ABS) (1826, 1828 Boston) (1827 Smith) (1832 PSE) (1835 Towar) (1836 Stebbing) (1839, 1845, 1854, 1857, 1876 Harding) (1841 Thomas) (1844, 1848 Hartford) (1846 Benson) (1846 Portland) (1910 Collins) (1924, 1958 Hertel) (2000, 2002 ZOND) (TPB) (HPB) (2007, 2008, 2010, 2011 HEND) (NHPB) (2024 FGWB) (1842 Bernard)
thirsty man (1769 Oxford, SRB) [1769 Cambridge, DKJB]
Luke 10:30 [see Luke 14:2, Luke 14:16, Acts 3:2] [Greek word for man--anthropos in TR text]
A certain man (1675, 1681, 1709, 1715, 1720, 1728, 1729, 1747, 1749, 1753, 1754, 1755, 1758, 1762, 1764, 1765, 1928 Oxford) [1629, 1635, 1637, 1638, 1648, 1683, 1873, 2005, 2011 Cambridge] {1611, 1613, 1616, 1617, 1626, 1630, 1631, 1634, 1640, 1648, 1650, 1655, 1657, 1672, 1684, 1689, 1706, 1711, 1723, 1730, 1735, 1743, 1795 London} (1755 Oxon) (1637, 1638, 1714, 1715, 1722, 1751, 1756, 1764, 1766, 1769 Edinburgh) (1722, 1743, 1762, 1801 Dublin) (1645 Dutch) (1695, 1798 Baxter) (1700 MP) (1746 Leipzig) (1776 Pasham) (1782 Aitken) (1790 MH) (1792, 1821 Brown) (1832, 1835 Scott) (1843 AFBS) (1897 Mackail) (2000, 2002 ZOND) (2003, 2011, 2012 Barbour) (2003 IGC) (2003 EB) (KJVJB) (TPB) (HPB) (2006 PENG) (2007, 2008, 2010, 2011 HEND) (NHPB) (2011 AMP) (2011 PJB) (NCE) (2013 CC) (2015 KAPPA) (2024 FGWB)
A certain man (1769 Oxford, SRB) [1743, 1762, 1769 Cambridge, DKJB]