Kays 210:23 :ܘܗ݀ܘܝܐ ܫܢ̄ܬܐ ܗ݀ܝ ܝܘܡ̈ܬܐ ܫ̄ܣ̄ܘ̄ ܘܡ݂ܬܩܪܝܐ ܟܒܝ݂ܫܬܐ‏ : that year becomes 366 days and is called leap year
See the entire entry for kḇīš adj. preserved; subdued