verb (used with object)
verb (used without object)
Origin of distinguish
British Dictionary definitions for distinguishability
verb (mainly tr)
Word Origin for distinguish
Word Origin and History for distinguishability
1560s, from Middle French distinguiss-, stem of distinguer, or directly from Latin distinguere "to separate between, separate by pricking," from dis- "apart" (see dis-) + -stinguere "to prick" (see extinguish, and cf. Latin instinguere "to incite, impel").
The suffix -ish is due to the influence of many verbs in which it is the equivalent of Old French -iss-, ultimately from Latin inchoative suffix -iscere (this is also the case in extinguish, admonish, and astonish). Related: Distinguishing. The earlier form of the verb was distinguen (mid-14c.).