IshPs 159(5) :ܗ݀ܘ ܕܒܗ ܡܬܚܙܐ ܚܝܠܟ ܘܫܘܒܚܟ ܡܬܘܡܝܐ‏ : that in which is seen your power and eternal glory
See the entire entry for məṯōmāy adj. eternal