The story
- Proto-Indo-European*tréyes
- Proto-Indo-European*tri-
- Proto-Italic*tri-
- Latintri-
- Proto-Indo-European*bʰeyd-
- Proto-Indo-European*bʰinédti
- Proto-Italic*findō
- Latinfindō
- Latintrifidus
- Englishtrifid
- English todaytriffid
Coined by John Wyndham for his 1951 novel The Day of the Triffids, by alteration of the botanical term trifid (“having three lobes”).
Etymology from Wiktionary, CC BY-SA 4.0.