semelfactive

From New Latin semelfactīvus, equivalent to Latin semel (“once, a single time”), from Proto-Indo-European *sḗm (“one, together”); plus factive, from Latin factum (“event, occurrence”), from faciō (“to do”), from Proto-Indo-European *dʰeh₁- (“to put, to do”); plus the Latin adjectival suffix -īvus.

semelfactive (not comparable)

1. (grammar) Of or relating to the semelfactive aspect.

• (grammar): momentane, momentary, instantaneous, punctual, nondurational

• (grammar): continuative, durative, experiential, frequentative, habitual, imperfective, iterative

semelfactive (plural semelfactives)

1. (grammar) The semelfactive aspect.

• perfective aspect
• Wikipedia article on grammatical aspect