μήπωmḗpō

not yet: with participle, Romans 9:11; with accusative et infinitive, Hebrews 9:8.

Greek (New Testament) · G3380

Same root

μήmḗ · G3361(adverb) not, (conjunction) lest; also (as an interrogative implying a negative answer (whereas G3756 (οὐ) expects an affirmative one)) whether
-πω-pō · G4452an enclitic particle of indefiniteness; yet, even; used only in the comparative. See G3369 (μηδέπω), G3380 (μήπω), G3764 (οὐδέπω), G3768 (οὔπω), G4455 (πώποτε).

Source: G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922), public domain.