←
Middle English howlen (inherited)
←
Middle English houlen (mention)
←
Old French ouler (cognate)
←
Proto-West Germanic *hūwilōn (inherited)
←
Proto-Indo-European *kū- (derived)
←
Proto-Indo-European *kew- (mention)
←
Northern Luri آلٛیر (cognate)
←
German Low German hulen (cognate)
←
Saterland Frisian huulje (cognate)
→
Bulgarian сова (cognate)
→
Alemannic German Huu (cognate)
→
Alemannic German hüüwle (cognate)