Obs. rare. [a. F. clouer to nail.]
By-form of CLOY v. in various literal senses: To fasten with nails; to wound with a nail; to spike.
1513. Douglas, Æneis, V. v. 30. Ane habirgeoun of burnist mailzeis brycht, Wyth gold ourgilt clowit thrynfald full tycht.
1598. Florio, Inchiodare, to clow or pricke a horse with a naile to clow ordinance. Inchiodatura, a pricking or clowing of a horse with a naile, called a clowing.
184778. Halliwell, Clow, to nail with clouts. West.
  Clow, obs. f. CLAW, CLEW.