古英語のhitから。PIE*koのthis, hereが語源で、語源的にはhe, here, himと同じである。Iと比較。
Whether the charmer sinner it or saint it,The h- was lost due to being in an unemphasized position, as in modern speech the h- in "give it to him," "ask her," "is only heard in the careful speech of the partially educated" [Weekley]. It "the sex act" is from 1610s; meaning "sex appeal (especially in a woman)" first attested 1904 in works of Rudyard Kipling, popularized 1927 as title of a book by Elinor Glyn, and by application of It Girl to silent-film star Clara Bow (1905-1965). In children's games, meaning "the one who must tag the others" is attested from 1842.
If the folly grow romantic, I must paint it.
[Pope, "Moral Essays," 1735]