10-10-2014, 11:35 PM
Here is (not so ancient) attestation to "Ragash" as "thunder" from Franz Delitzsch.
V'eth Ya'akov ben Zavdai v'eth Yukhanan akhi Ya'akov v'yekhaneh atham b'shem Benei Ragosh hwa Benei Ra'am.- Mark 3:17, Delitzsch's Hebrew Translation
'Ya'akov ben Zavdai and Yochanan, the brother of Ya'akov-- and he called them by the name Benei Regosh, that is, "sons of thunder"...'- The Delitzsch Hebrew Gospels
V'eth Ya'akov ben Zavdai v'eth Yukhanan akhi Ya'akov v'yekhaneh atham b'shem Benei Ragosh hwa Benei Ra'am.- Mark 3:17, Delitzsch's Hebrew Translation
'Ya'akov ben Zavdai and Yochanan, the brother of Ya'akov-- and he called them by the name Benei Regosh, that is, "sons of thunder"...'- The Delitzsch Hebrew Gospels