The Collaborative International Dictionary
Desinent
Desinent \Des"i*nent\, a. [L. desinens, p. pr. of desinere,
desitum, to leave off, cease; de- + sinere to let, allow.]
Ending; forming an end; lowermost. [Obs.] ``Their desinent
parts, fish.''
--B. Jonson.
Wiktionary
desinent
a. (context obsolete English) Ending; forming an end; lowermost.