frequentativefrequentative

Frequentative comes from Latin frequentāre ‘to do or use often’, and perhaps goes back to Proto-Indo-European *bʰrekʷ- ‘to condense’.

1. Proto-Indo-Europeanc. 4500–2500 BCE*bʰrekʷ-¹‘to condense’uncertain
2. Proto-Italicc. 1500–700 BCE*frekʷents¹reconstructed
3. Latinc. 75 BCE–200 CEfrequēns¹‘often, regular, constant, repeated, assiduous’
4. Latinc. 75 BCE–200 CEfrequentāre¹‘to do or use often’
5. Late Latinmodernfrequentātīvus¹
6. Middle Englishc. 1150–1500frequentatyf¹
7. Englishtodayfrequentative¹

1. ¹ Wiktionary, English frequentative