the.com/boatyard

means A waterside lot or facility where boats are built, repaired, stored, and generally relieved of their owners' savings.

from A plain compound of 'boat' (from Old English bāt, a word for small open vessels) and 'yard' (Old English geard, an enclosed piece of ground). Nothing hidden here — it's exactly what it says: a yard, but for boats, joined into one word once the places became common enough to need a single name.