craven
Pronunciation: /ˈkreɪv(ə)n/

Origin:
Middle English cravant 'defeated', perhaps via Anglo-Norman French from Old French cravante, past participle of cravanter 'crush, overwhelm', based on Latin crepare 'burst'. The change in the ending in the 17th century was due to association with past participles ending in -en (see -en3)