BDB9917
[שִׂיב] verb be hoary (see Biblical Hebrew); —
Pe`al
Participle plural as substantive = elders, technical term, absolute
שָׂבֵי יְהוּדָיֵא
Ezra 5:5; Ezra 6:7; Ezra 6:8; Ezra 6:14 so
emphatic שָׂבַיָּא
Ezra 5:9.