The story
- French · derived fromroboratif
- Latin · derived fromrōborāre“to strengthen, to invigorate”
- English todayroborative
From Latin rōborāre (“to strengthen, to invigorate”) + -ive (“forming adjectives”) directly and via French roboratif, from rōbur (“reddish oak; hardness, strength”) + -āre (“forming verbs”). Equivalent to roborate + -ive.
Words from the same roots
Latinrōborāre all →
roborate
Etymology from Wiktionary, CC BY-SA 4.0.