Proto-Germanic *fifaldǭ

→ Old English fifealde (inherited)

→ Danish flagermus (cognate)

→ German Falter (derived)

→ German Fledermaus (derived)

→ Middle Dutch vleder (mention)

→ Middle English flindre (mention)

→ Faroese firvaldur (inherited)

→ West Frisian flinter (mention)

→ Westrobothnian førel (derived)

→ Icelandic fiðrildi (derived)

→ Latin papilio (cognate)

→ Dutch vlinder (derived)

→ Dutch fladderen (mention)

→ Dutch vijfwouter (inherited)

→ Saterland Frisian Flitterke (mention)

→ Swedish fjäril (derived)