English
lactone
Lactone comes from German Keton ‘ketone’, and goes back to Latin lac ‘milk’.
- Latinc. 75 BCE–200 CElac‘milk’
- Germanc. 1650–presentKeton‘ketone’
- English1500–presentketone
- Englishtodaylactone
attested reconstructed ? uncertain or disputed
Lineage
- Latinc. 75 BCE–200 CElac‘milk’
- Germanc. 1650–presentKeton‘ketone’
- English1500–presentketone
- Englishtodaylactone
Linked words
through Latin lac ‘milk’
lettuce, latte, lactic, lactate, 10 more
through German Keton ‘ketone’
through English ketone
Today it means
noun A cyclic intramolecular ester derived from a hydroxy acid.
Language periods are conventional ranges, not dates for this word.
Etymograph / Latin lac / lactone