selfsame

Origin

PIE word *swé From Middle English self sam, self same, selve same (“the very same, selfsame”) [and other forms], from self (“that specific (person mentioned), herself, himself, itself, themselves”, pronoun) (from Old English self, ultimately from Proto-Indo-European *swé (“self”)) + sam, same (“(adjective) equal, identical; unchanging; referred to earlier, abovenamed, aforementioned; (adverb) again, repeatedly”) (from Old Norse samr (“same; agreeing, of one mind”), ultimately probably from Proto-Indo-European *sem- (“one, together”)). The English word is analysable as self + same. Cognates * Danish selvsamme (“identical, selfsame”) * Old High German selbsama (“identical, selfsame”)