From Middle English hitten (“to hit, strike, make contact with”), from Old English hittan (“to meet with, come upon, fall in with”), probably of North Germanic origin, from Old Norse hitta (“to strike, meet”), from Proto-Germanic *hitjaną (“to come upon, find”), from Proto-Indo-European *k(')eid- (“to fall, fall upon”). Cognate with Icelandic hitta (“to meet”), Danish hitte (“to find”), Latin caedō (“fall”), Albanian qit (“to hit, throw, pull out, release”).
From Wiktionary
From Middle English hit (“it”), from Old English hit (“it”), from Proto-Germanic *hit (“this, this one”), from Proto-Indo-European *k'e-, *k'ey- (“this, here”). Cognate with Dutch het (“it”). More at it. Note 'it.
From Wiktionary
Middle English hitten from Old English hyttan from Old Norse hitta
From American Heritage Dictionary of the English Language, 5th Edition