The story
- Latin · derived fromtrīgintā“thirty”
- Vulgar Latin · derived fromtrenta
- Old French · derived fromtrentel
- Medieval Latin · derived fromtrentāle
- English todaytrental
From Medieval Latin trentāle directly or via Old French trentel, from the neuter substantive of *Vulgar Latin trenta + -ālis (“-al: forming adjectives”), from Latin trīgintā (“thirty”).
Words from the same roots
Latintrīgintā all →
trigintaltrigintennialtrigintillion
Etymology from Wiktionary, CC BY-SA 4.0.