aff. an adjective-forming suffix, now unproductive, with the meanings “like,”“tending to”:burdensome; quarrelsome[/ex]•Etymology: ME; OE -sum, c. OFris-sum; akin to OOHG -sam, ON -samr, Go-sams II-someaff. a collective suffix used with numerals:threesome[/ex]•Etymology: ME -sum, OE sum some (pronoun) III-someaff. a combining form used in the names of structures or regions of a cell (chromosome; ribosome), chromosomes (autosome), or organisms having the form specified by the initial element (schistosome; trypanosome)•Etymology: < Gk sôma body; see soma
From formal English to slang. 2014.