Inherited fromProto-Italic*-skō, fromProto-Indo-European*-sḱéti.
-scō (present infinitive-scere,perfect active-ī,supine-um);third conjugation
This suffix only forms the firstprincipal part; the perfect and supine stems used vary according to the verb (e.g.adolēscō,adoluī,adultum).
Inherited fromLate Latin,Vulgar Latin-iscus.
-sco (adjective-forming suffix,feminine-sca,masculine plural-scos,feminine plural-scas)
-sco m (noun-forming suffix,plural-scos)