v.
(present participle thirling, simple past and past participle thirled)
- To pierce, perforate, penetrate
- (obsolete) To drill or bore
n.
- (archaic or dialectical) A hole, aperture, especially a nostril
- (dialectal) A low door in a dry-stone wall to allow sheep to pass through; a smoot
[The Daughter of Time — Josephine Tey]