English

Permanite

Marketing coinage, presumably permanent + -ite.

Formed from permanent + -ite

Latin maneō ‘I remain’

Latin permaneō ‘to stay through’

Latin permanēns ‘lasting’

Middle French permanent

Middle English permanent

Today it means

noun A very durable form of plastic, marketed as unbreakable.

Language periods are conventional ranges, not dates for this word.

Etymograph / Permanite