Where does “undiscernable” come from?

undiscernable (English) comes from English discernable, from Middle French discernable, from Latin discernibilis.

undiscernable (English): Archaic spelling of indiscernible

Definitions

  1. Archaic spelling of indiscernible

Ancestry of “undiscernable”, step by step

undiscernable traces back through two separate lines of ancestry.

via English discernable

StepLanguageWordMeaning
1EnglishdiscernableAlternative spelling of discernible
2Middle Frenchdiscernable—
3Latindiscernibilis—

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Latin discernibilis →Every word from Middle French discernable →Every word from English discernable →