(Aramaic) corresponding to rbiy'iy -- fourth.
see HEBREW rbiy'iy
H7244. rebii
[רְבִיעִי] adjective ordinal number fourth; — feminine absolute רביעיא Kt, רְבִיעָאָה Qr (K§ 66, 1) Daniel 2:40; 3:25; 7:7, 23; emphatic רְבִיעָֽיְתָא 7:19; 7:23.
רַבְרְבִין etc. see רַב above רַבְרְבָן see רבב.