Llongdor, n. a shipwreck
Llongdoriad, n. shipwrecking
Llongddrylliad, n. shipwrecking
Llongddryllio, v. to shipwreck
Llongi, v. to go on board a ship
Llongiad, n. a going on board
Llongiadaeth, n. navigation
Llongiadu, v. to navigate
Llonglwyth, n. a ship-load
Llongsaer, n. a shipwright