occurring as the final element in informal shortenings of nouns ( ammo; combo; condo; limo; promo ); -o,
also forms nouns, usually derogatory, for persons or things exemplifying or associated with that specified by the base noun
or adjective ( cheapo; pinko; sicko; weirdo; wino ).
a suffix occurring in colloquial noun or adjective derivatives, usually grammatically isolated, as in address: cheerio; kiddo; neato; righto.
perhaps orig. the interjection O, appended to words as in def 2;
as a derivational suffix reinforced by clipped forms of words with -o-
as a linking element (e.g., photo
), by Rom nouns ending in o,
and by personal nouns such as bimbo
, of obscure origin