English
elsewho
From else + who, patterned on elsewhere.
Proto-Indo-European *h₂el- ‘other’
…
Proto-Germanic *aljas ‘of another’
Proto-West Germanic *alljas ‘else’
Old English elles ‘other’
Middle English ells
English else
Proto-Indo-European *kʷ- ‘interrogative root’
…
Proto-Germanic *hwaz ‘who’
Proto-West Germanic *hwaʀ
Old English hwā ‘who’
Middle English who ‘who’
English who
Today it means
pron Someone else, anyone else.
Language periods are conventional ranges, not dates for this word.
Etymograph / elsewho