Etymograph

English

irremissibleness

From irremissible + -ness.

A compound of irremissible + -ness

Late Latin irremissibilis

Old French irremissible

Middle English irremyssible

English irremissible

Today it means

noun The quality of being irremissible.

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

Etymograph / irremissibleness