pro rata
adjective /ˌprəʊ ˈrɑːtə/
/ˌprəʊ ˈrɑːtə/
(from Latin, formal)- (of a payment or share of something) calculated according to how much of something has been used, the amount of work done, etc. synonym proportionate
- If costs go up, there will be a pro rata increase in prices.
- Leave entitlement is calculated on a pro rata basis, according to length of service.
Word Originlate 16th cent.: Latin, literally ‘according to the rate’.