←
Middle Dutch vorsch (inherited)
←
English frosh (mention)
←
West Frisian froask (cognate)
←
Proto-Indo-European *prew- (derived)
←
Old Dutch *frosk (inherited)
→
English frosh (cognate)
→
Old English frosc (cognate)
→
Luxembourgish Fräsch (cognate)
→
Pennsylvania German Frosch (cognate)