clavellated
adjective
clav·el·lat·ed
ˈklavəˌlātə̇d
old chemistry
: made of the dried and burned lees or dregs of wine or vegetable matter
clavellated ashes
Word History
Etymology
Medieval Latin clavellatus (from clavellus nail—from Late Latin, small sore resembling the head of a nail, diminutive of Latin clavus nail—+ Latin -atus -ate) + English -ed—probably from the nail-studded appearance of the surface of clavellated ashes