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obsolete except in place names, Old English næs "a promontory," related to nasu "nose" (see nose (n.)). Cognate with Old Norse nes, Danish næs, Swedish näs, Middle Dutch nesse.
word-forming element denoting action, quality, or state, attached to an adjective or past participle to form an abstract noun, from Old English -nes(s), from West Germanic *in-assu- (cf. Old Saxon -nissi, Middle Dutch -nisse, Dutch -nis, Old High German -nissa, German -nis, Gothic -inassus), from *-in-, noun stem, + *-assu-, abstract noun suffix, probably from the same root as Latin -tudo (see -tude).