Strong’s Hebrew
H389 — 'ak
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
אַךְ
'ak — pronounced ak
akin to 403; a particle of affirmation, surely; hence (by limitation) only:--also, in any wise, at least, but, certainly, even, howbeit, nevertheless, notwithstanding, only, save, surely, of a surety, truly, verily, + wherefore, yet (but). see H0403
0 occurrences in the KJV.