aff. a suffix with the general sense “of the kind of, pertaining to, having the form or character of” that named by the stem, occurring in loanwords from Latin (autumnal; natural; pastoral), and productive in English on the Latin model, usu. with bases of Latin origin (accidental; seasonal; tribal)Compare -ical -ar I -ial•Etymology: < L -ālis, -āle II-alaff. a suffix forming nouns from verbs, usu. verbs of French or Latin origin:denial; refusal[/ex]•Etymology: < L -āle (sing.), -ālia (pl.), nominalized neut. of -ālis -al I; often r. ME -aille < OF < L -ālia III-alchem. aff. a suffix used in the names of chemical compounds that contain an aldehyde group:acetal; furfural[/ex]•Etymology: prob. extracted from chloral
From formal English to slang. 2014.