'ashery' originates from Middle English, specifically the word 'asherie', where 'ash' meant 'ashes (residue from burning)' and the suffix '-ery' came from Old French '-erie' meaning 'place' or 'practice'.

'ashery' changed from Middle English 'asherie' (formed from 'ash' + Old French-derived suffix '-erie') and eventually became the modern English word 'ashery'.

Initially, it meant 'a place for ashes or for processing ashes (e.g., to make potash)', and over time this basic sense has largely been retained though the word has become rare/archaic.