IIPet 2:21 :ܠܒ݂ܵܬ݂ܪܵܐ ܢܸܗܦ݁ܟ݂ܘ݂ܢ ܡܸܢ ܦ݁ܘ݂ܩܕ̇ܵܢܵܐ ܩܲܕܼ݁ܝܫܵܐ‏ : to turn backward from the holy commandment
See the entire entry for lbātrā adv. backwards