Word Study
annates
CIDE DICTIONARY
annates, n. pl. [See Ann.].
The first year's profits of a spiritual preferment, anciently paid by the clergy to the pope; first fruits. In England, they now form a fund for the augmentation of poor livings. [1913 Webster]
OXFORD DICTIONARY
annates, n.pl. RC Ch. the first year's revenue of a see or benefice, paid to the Pope.
Etymology
F annate f. med.L annata year's proceeds f. annus year
For further exploring for "annates" in Webster Dictionary Online
(NT only) to listen to the NET Bible 
