partitive
That divides something into parts.
partitive tendencies in education
Indicating a part rather than the whole of something.
The word some is used in partitive constructions.
Where it comes from
Inherited from Middle English partitif, borrowed from Medieval Latin partītīvus, from Latin partītus + -īvus.
Adapted from the Wiktionary entry partitive (CC BY-SA 4.0).