The story
- Proto-Indo-European · inherited from*tews-“to clear; empty; drain”
- Proto-Germanic · inherited from*þustaz“manure”
- Proto-West Germanic · inherited from*þost
- Old English · inherited fromþost“dung; ordure”
- Middle English · inherited fromthost
- English todaythost
From Middle English thost, from Old English þost (“dung; ordure”), from Proto-West Germanic *þost, from Proto-West Germanic *þost, from Proto-Germanic *þustaz (“manure”), from Proto-Indo-European *tews- (“to clear; empty; drain”).
Etymology from Wiktionary, CC BY-SA 4.0.