The story
- Proto-Indo-European*bʰrekʷ-der.?
- Proto-Italic*frekʷents
- Latinfrequēns
- Latinfrequentāre
- Late Latinfrequentātīvus
- Middle Englishfrequentatyf
- English todayfrequentative
Inherited from Middle English frequentatyf, from Late Latin frequentātīvus, from Latin frequentāre (“to do or use often”), from frequēns (“often, regular, constant, repeated, assiduous”) + -ō. By surface analysis, frequent + -ative.
Etymology from Wiktionary, CC BY-SA 4.0.