THURL
Etymology 1
Verb
thurl (third-person singular simple present thurls, present participle thurling, simple past and past participle thurled)
(transitive, obsolete) To cut through; to pierce.
(transitive, mining, obsolete) To cut through, as a partition between one working and another.
Noun
thurl (plural thurls)
A hole; an aperture.
(mining) A short communication between adits in a mine.
(mining) A long adit in a coalpit.
Etymology 2
Noun
thurl (plural thurls)
(agriculture, chiefly in the plural) Either of the rear hip joints where the hip connects to the upper leg in certain animals, particularly cattle; often used as a reference point for measurement.
Source: Wiktionary
Thurl, n. Etym: [AS. a hole. *53. See Thirl, Thrill.]
1. A hole; an aperture. [Obs.]
2. (Mining)
(a) A short communication between adits in a mine.
(b) A long adit in a coalpit.
Thurl, v. t. Etym: [See Thrill.]
1. To cut through; to pierce. [Obs.] Piers Plowman.
2. (Mining)
Definition: To cut through, as a partition between one working and another.
Source: Webster’s Unabridged Dictionary 1913 Edition