The story
From perfective + -ity.
Etymology from Wiktionary, CC BY-SA 4.0.
perfectivity
Today it means: The state of being in perfective aspect or the imperfective aspect Full definition →
Today it means: The state of being in perfective aspect or the imperfective aspect Full definition →
From perfective + -ity.
Etymology from Wiktionary, CC BY-SA 4.0.