cascrom
A type of foot plough with a crooked spade component, used in the Scottish Highlands.
That excellent instrument the cascrom, literally crooked foot, a kind of foot plough, which the Highlanders can manage with great dexterity, and which is too little known,* is still used in mountainous districts, and, from its excellent adaptation to the culture of rugged and steep hills, where a plough cannot be used, is not likely ever to be superseded by any implement.
1843, James Logan, The Scottish Gaël; Or, Celtic Manners: As Preserved Among the Highlanders, 1st American Edition, page 309,
Where it comes from
From Scottish Gaelic, from cas (“foot”) + crom (“crooked, bent”).
Adapted from the Wiktionary entry cascrom (CC BY-SA 4.0).