English whose

← Old English hwæs (inherited)

← Middle English whos (inherited)

← Proto-Germanic *hwes (inherited)

← Proto-Germanic *hwaz (mention)

← Proto-Germanic *hwat (mention)

← Proto-Indo-European *kʷ- (root)

→ English -s (mention)

→ English which's (mention)

→ English which's (mention)

→ English which's (mention)

→ English which's (mention)

→ English whosesoever (compound)

→ English wh-movement (mention)

→ English whoseever (compound)

→ English Whoser (suffix)