←
Old English hwām (inherited)←
Old English hwǣm (mention)←
Old English hwā (mention)←
Proto-Germanic *hwaz (mention)←
Proto-West Germanic *hwammē (inherited)←
Proto-West Germanic *hwaʀ (mention)←
Proto-Indo-European *kʷósmey (inherited)←
Proto-Indo-European *kʷós (mention)→
English whom (inherited)→
Middle English hom (alter)→
Middle English whos (mention)