Webster's Revised Unabridged Dictionary · 1913

Loaf

Loaf , noun

[Old English lof, laf, Anglo-Saxon hlāf; akin to German laib, Old High German hleip, Icelandic hleifr, Gothic hlaifs, Russ. khlieb', Lithuanian klepas. Compare Lady, Lammas, Lord.]

Any thick lump, mass, or cake; especially, a large regularly shaped or molded mass, as of bread, sugar, or cake. — Bacon
Collocations (1)
Loaf sugar , refined sugar that has been formed into a conical loaf in a mold.

Loaf , intransitive verb

[German laufen to run, Prov. German loofen. See Leap.]

To spend time in idleness; to lounge or loiter about.
Loafing vagabonds. — W. Black

Loaf , transitive verb

To spend in idleness; -- with away; as, to loaf time away.