RMO «I would say that "sei'ar" is masculine, even in its qamatz-heih form (13:4), and 13:20's "us'arahh" really is "sei'ar shel <feminine noun>." IIUC, then the 2 forms of sei'ar would match the 2 forms of Layil/Laylah where both forms are also masculine. Shalom and Regards, RRW