English
ineffable
Ineffable comes from Latin ineffābilis ‘unutterable, unpronounceable’, from effābilis ‘utterable’, and ultimately from Proto-Indo-European *bʰeh₂- ‘to speak’.
- Proto-Indo-Europeanc. 4500–2500 BCE*bʰeh₂-1‘to speak’reconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*bʰéh₂ti1‘to speak, to be talking’reconstructed
- Proto-Italicc. 1500–700 BCE*fāōr1‘to speak’reconstructed
- Latinc. 75 BCE–200 CEfor1‘to speak, talk, say’
- Latinc. 75 BCE–200 CEeffor1‘to speak, say out, utter’
- Latinc. 75 BCE–200 CEeffābilis1‘utterable’
- Latinc. 75 BCE–200 CEineffābilis1‘unutterable, unpronounceable’
- Middle Frenchc. 1400–1600ineffable1
- Englishearliest quotation 1750ineffable1
attested reconstructed ? uncertain or disputed deepest recorded ancestor
- 1 Wiktionary, English ineffable
- Earliest quotation in Wiktionary’s entry: 1750, Theodora: “Devotion bids aspire to nobler things, to boundless love,…”.
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*bʰeh₂-Wiktionary, English ineffable‘to speak’reconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*bʰéh₂tiWiktionary, English ineffable‘to speak, to be talking’reconstructed
- Proto-Italicc. 1500–700 BCE*fāōrWiktionary, English ineffable‘to speak’reconstructed
- Latinc. 75 BCE–200 CEforWiktionary, English ineffable‘to speak, talk, say’
- Latinc. 75 BCE–200 CEefforWiktionary, English ineffable‘to speak, say out, utter’
- Latinc. 75 BCE–200 CEeffābilisWiktionary, English ineffable‘utterable’
- Latinc. 75 BCE–200 CEineffābilisWiktionary, English ineffable‘unutterable, unpronounceable’
- Middle Frenchc. 1400–1600ineffableWiktionary, English ineffable
- Englishearliest quotation 1750ineffableWiktionary, English ineffable. Earliest quotation in Wiktionary’s entry: 1750, Theodora: “Devotion bids aspire to nobler things, to boundless love,…”
Linked words
through Proto-Indo-European *bʰeh₂- ‘to speak’
phone, focus, professor, fuel, ben, famous, phase, ban, favourite, favor, fantasy, photographer, emphasis, fancy, fate, phenomenon, profession, fame, bee, fatal, confession, fairy, abandon, confess, phantom, symphony, beacon, beck, infant, boon, epiphany, foyer, banish, fay, bane, buoy, profess, banal, fantasia, phenomenology, 123 more
through Proto-Indo-European *bʰéh₂ti ‘to speak, to be talking’
through Latin for ‘to speak, talk, say’
fabulous, fab, affable, 13 more
through Latin effor ‘to speak, say out, utter’
Today it means
adj Beyond expression in words; unspeakable.
Sources
Sources: Wiktionary, “ineffable”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / Proto-Indo-European *bʰeh₂- / ineffable