Webster's Revised Unabridged Dictionary · 1913

Tour

Tour , noun

[French tour. See Tower.]

A tower. [Obsolete] — Chaucer

Tour , noun

[French tour. See Turn, transitive verb]

1.
A going round; a circuit; hence, a journey in a circuit; a prolonged circuitous journey; a comprehensive excursion; as, the tour of Europe; the tour of France or England.
The bird of Jove stooped from his airy tour. — Milton
2.
A turn; a revolution; as, the tours of the heavenly bodies. [Obsolete] — Blackmore
3.
(Military) anything done successively, or by regular order; a turn; as, a tour of duty.

Tour , intransitive verb

To make a tourm; as, to tour throught a country. — T. Hughes