"proper, befitting, right," early 15c., present-participle adjective from fit (v.). Related: Fittingly.
fitting n.
c. 1600, verbal noun from fit (v.). Meaning "action of fitting on a garment" is from 1900.
Entries linking to fitting
fit v.
c. 1400, "to marshal or deploy (troops);" early 15c. as "be fitting or proper, be suitable," from fit (adj.) and perhaps in part from Scandinavian (compare Old Norse fitja "knit"). From 1580s as "be the right shape." Transitive sense of "provide with what is suitable" is from 1590s; that of "make fit or suitable, bring into corresponding form or condition" is from c. 1600. Related: Fitted; fitting. Fitted sheets is attested from 1948.