EphFid 25:9.2 :ܡܛܝܒ ܗܘ ܠܐܘܡܢܘܬܐ ܕܗܝ ܡܨܝܐ ܕܥܠܘܗܝ ܬܪܟܒ‏ : he prepares a piece of craftsmanship that is able to ride upon it (i.e. the stormy sea)
See the entire entry for ˀummānū, ˀummānūṯā n.f. trade, skill, craft