Meaning

noun a kiln for drying hops

originFrom Middle English ost, from Old English āst (“a kiln”), from Proto-Germanic *aistaz (“kiln”), from *aisǭ (“fire”), from Proto-Indo-European *h₂eydʰ- (“to burn; fire”). Cognate with Dutch eest (“kiln”), Middle Low German eiste (“kiln”), Latin aedes (“house; hearth”), Old English ād (“fire; funeral pyre”).

Etymology from Wiktionary, CC BY-SA 3.0