Ineffable etymology

English

English word ineffable comes from Latin effabilis (Utterable.)

Detailed word origin of ineffable

Dictionary entry Language Definition
effabilis Latin (lat) Utterable.
ineffabilis Latin (lat) Unutterable, unpronounceable.
ineffable Middle French (frm) Ineffable (unable to be expressed in words).
ineffable English (en) Beyond expression in words; unspeakable.. Forbidden to be uttered; taboo.