←
Proto-Germanic *wesaną (inherited)←
Proto-Germanic *beuną (inherited)←
Proto-West Germanic *wesan (inherited)←
Proto-Indo-European *h₂wes- (derived)←
Proto-Indo-European *bʰuH- (derived)→
Middle Low German wesen (inherited)→
Low German sien (inherited)→
German Low German wesen (inherited)→
German Low German waen (inherited(nds-de/nds-nl))