EphPar 1:17.4 :ܫܘܢܩܗܘܢ ܐܥܦܐ ܗܘ | ܕܚ݁ܙܝܢ ܠܡ̈ܒܘܥܘܗܝ ܘܡܬܛܦܛܦܝܢ ܪܒܬ | ܠܩܘܒܠܗܘܢ‏ : their torture is doubled for they see its fountains flickering greatly before them
See the entire entry for ṭpṭp vb. to flicker out