 In Scots, the alternative name "skene-ochil" or "skene-occles" can also be found.The term mattucashlass derives from  (, meaning "dagger" and "armpit") presumably via the dialectal by-form , which is attested in Shaw's 1788 "Galic and English Dictionary".It is also known in Gaelic as the ( meaning "knife"), from which the Scots term or is derived.