Old English ost

← German Ast (cognate)

← Proto-Germanic *ōstaz (inherited)

← Proto-Germanic *astaz (mention)

← Middle Low German ōst (cognate)

← Old High German ast (cognate)

← Gothic 𐌰𐍃𐍄𐍃 (cognate)

← Dutch oest (cognate)

→ Old English ofost (suffix)