Ps-Clem Recogs 3.162:6 :ܘܡܟܝܠ ܢܪܕܐ ܕܠܐ ܡܚܫܘܠܐ ܟܕ ܡܬܚܫܚܝܢ ܐܢܚܢܢ ܒܣܘܟܢܐ ܗܢܐ ܕܢܦܫܐ ܕܠܐ ܡܝܬܐ‏ : so let us travel without storm-tossing while we use this rudder of the immortal soul
See the entire entry for sawkān, sawkānā n.m. rudder