The Collaborative International Dictionary
Primitia
Primitia \Pri*mi"ti*a\, n.; pl. Primiti[ae]( Primitias, obs.). [L. primitiae, pl., fr. primus first. Cf. Premices.] (Eng. Law) The first fruit; the first year's whole profit of an ecclesiastical preferment.
The primitias of your parsonage.
--Spenser.
Wiktionary
primitia
n. (context UK legal obsolete English) The first fruits; the first year's whole profit of an ecclesiastical preferment.