Proto-Germanic *gernô

→ Cimbrian gearn (inherited)

→ German gern (inherited)

→ Middle Dutch gerne (inherited)

→ Old High German gerno (inherited)

→ Luxembourgish gär (inherited)

→ Dutch gaarne (inherited)

→ Old Norse gjarna (inherited)

→ Old Saxon gerno (inherited)

→ Swedish gärna (derived)