ActAM 2.2:4 :ܕܟܪ̈ܘܒܝܐ ܘܕܣܪ̈ܘܦܝܐ ܕܒܫܘܡܝܐ‏ : of the cherubim and seraphim in heaven
See the entire entry for srwpyn n.m.pl. seraphim