Where does “mercial” come from?

mercial (Middle English) comes from Middle French martial, from Latin Martialis, from Latin -ālis, from Proto-Italic -ālis — forms relational adjectives.

Ancestry of “mercial”, step by step

StepLanguageWordMeaning
1Middle Frenchmartial
2LatinMartialisRoman cognomen
3Latin-ālis
4Proto-Italic-ālisforms relational adjectives

Words derived from “mercial

Every word from Proto-Italic -ālisEvery word from Latin -ālisEvery word from Latin Martialis