Addai.34.15 :ܡܢ ܟܬܝܫܘܬܐ ܕܫܢܝܘܬܐ ܕܚܢܦܘܬܐ‏ : from the excitement of the insanity of paganism
See the entire entry for kṯīšū, kṯīšūṯā n.f. excitement