GY 8:20↗lanaidia ulamizdrambin: they do not waver and do not shake;MandMB 64:114↗alma ḏšumia nadt ualma ḏarqa ˁzdrmbiat: until the heavens trembled and until the earth was shaken up
See also s.v. zrby vb. Probably an expansion of zrb, but possibly with a conflation of zrm (for which compare zrmyt and Hebrew זֶרֶם, "a strong downpour".
Page refs. in other dictionaries: Drower/Macuch: 171a