שְׂגָא (śĕgāʾ) is
an Aramaic verb
meaning grow great. It appears
3 times
in 2 books of the Hebrew Bible
(Strong's H7680).
Same Hebrew root (TWOT 3004)
Root family 3004: שְׂגָאśĕgāʾ — grow great. The verb is used also in Hebrew, but restricted to the book of Job. It may be an Aramaism there or a dialectical variant of ancient Hebrew