←
English frosh (cognate)
←
West Frisian froask (cognate)
←
Middle High German vrosch (inherited)
←
Middle Low German vorsch (cognate)
←
Proto-West Germanic *frosk (inherited)
←
Old High German frosk (inherited)
←
Proto-Indo-European *prew- (derived)
→
English frosh (cognate)
→
English frush (cognate)
→
Old English frosc (cognate)
→
Cimbrian bross (cognate)
→
Luxembourgish Fräsch (cognate)
→
Pennsylvania German Frosch (cognate)