English oast

← Old English āst (inherited)

← Old English ād (cognate)

← Middle English ost (inherited)

← Proto-Germanic *aistaz (inherited)

← Proto-Germanic *aisǭ (mention)

← Middle Low German eiste (cognate)

← Proto-Indo-European *h₂eydʰ- (root)

← Proto-Indo-European *h₂eydʰ- (inherited)

← Latin aedes (cognate)

← Dutch eest (cognate)

→ English oast house (compound)