English
functionate
From function + -ate (verb-forming suffix).
Formed from function + -ate
Proto-Indo-European *bʰewg- ‘to enjoy’
…
Latin fungor ‘to perform’
Latin fūnctiō ‘performance’
Old French fonction
Middle French function
English function
Today it means
verb To function.
Language periods are conventional ranges, not dates for this word.
Etymograph / functionate