LUGMARK
Lug"mark`, n. Etym: [From Lug an ear.]

Defn: A mark cut into the ear of an animal to identify it; an earmark.

LUGSAIL
Lug"sail`, n. (Naut.)

Defn: A square sail bent upon a yard that hangs obliquely to the mast and is raised or lowered with the sail. Totten.

LUGUBRIOUS Lu*gu"bri*ous, a. Etym: [L. lugubris, fr. lugere to mourn; cf. Gr. ruj to break.]

Defn: Mournful; indicating sorrow, often ridiculously or feignedly;
doleful; woful; pitiable; as, a whining tone and a lugubrious look.
Crossbones, scythes, hourglasses, and other lugubrious emblems of
mortality. Hawthorne.
— Lu*gu"bri*ous*ly, adv.
— Lu*gu"bri*ous*ness, n.

LUGWORM
Lug"worm`, n. Etym: [1st lug + worm.] (Zoöl.)

Defn: A large marine annelid (Arenicola marina) having a row of tufted gills along each side of the back. It is found burrowing in sandy beaches, both in America and Europe, and is used for bait by European fishermen. Called also lobworm, and baitworm.

LUKE Luke, a. Etym: [Prob. fr. lew, perh. influenced by AS. wlæc warm, lukewarm, remiss. Cf. Lew.]

Defn: Moderately warm; not hot; tepid.
— Luke"ness, n. [Obs.]
Nine penn'orth o'brandy and water luke. Dickens.