Also (less correctly) tyro-. [L. tīrōcinium first military service or campaign, young troops, f. tīro, TIRO + -cinium, as in latrōcinium robbery, vāticinium prophecy.]
a. First experience of or training in anything; apprenticeship, pupilage, novitiate; hence, inexperience, rawness. b. concr. A band of novices or recruits.
1651. Life Father Sarpi (1676), 29. The Tyrocinium or the young Militia of state in the Commonwealth.
1654. Gayton, Pleas. Notes, 37. It is the right discipline of Knight-Errantry, to be rudimented in losses at first, and to have the Tyrocinium somewhat tart.
1711. Shaftesb., Charac. (1737), III. V. ii. 274. There the Tyrocinium of Geniuss is annually displayd.
1784. Cowper (title), Tirocinium; or, A Review of Schools.
1839. Charleston Daily Courier, 8 July, 2/5. This seems to be the legitimate department appertaining to the tirocinium. It is a place for instructionfor training the mind.