celeriac

the word 'celeriac' is a modern botanical term formed from 'celery' with the addition of the suffix '-ac'. the base 'celery' itself has an intriguing history, deriving from the ancient greek word 'selinon', meaning 'parsley', which passed into latin as 'selinum' and later 'celerium'. the latin root 'celer', meaning 'swift', is thought to have influenced the form due to the plant's rapid growth. the suffix '-ac', of latin origin, denotes a connection or relationship, thus 'celeriac' literally means 'pertaining to celery', specifically distinguishing this root vegetable from its leafy-stalked relative.

Structure: celeri (celery) + ac (pertaining to) celeri (from latin 'celerium', a variant of 'celer', meaning 'quick' or 'swift', later associated with the plant celery; here it functions as the base noun). ac (from latin adjectival suffix '-acus', meaning 'pertaining to' or 'belonging to'; here it forms an adjective used as a noun).