FROM STRONG’S HEBREW DICTIONARY (1890)

Strong’s Hebrew Dictionary (1890) — public domain, printed whole.

'ak 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 HEBREW for 0403