'Prowest' definitions:

Definition of 'Prowest'

From: GCIDE

Prow \Prow\, a. [Compar. Prower; superl. Prowest.] [OF. prou, preu, F. preux, fr. L. pro, prod, in prodesse to be useful. See Pro-, and cf. Prude.] Valiant; brave; gallant; courageous. [Archaic] --Tennyson. [1913 Webster]
The prowest knight that ever field did fight. --Spenser. [1913 Webster]