indeed, no doubt, surely, (it is, of a) true(-ly, -th)

Strong’s Dictionary of Hebrew Words:

Number:
551 (find all occurrences in KJV Bible)
Transliteration:
’omnam
Phonic:
om-nawm’
Meaning:
adverb from 544; verily
KJV Usage:
indeed, no doubt, surely, (it is, of a) true(-ly, -th)