noun

1. a military unit consisting of two or more battalions and forming a basic element of a division: since 1963 no longer a tactical unit in the U.S. Army
2. a large number (of persons, etc.)
3. Obsolete rule; government

Etymology: ME < MFr < LL regimentum < L regere, to rule: see right

transitive verb

1. to form into a regiment or regiments
2. to assign to a regiment or group
3. to form into an organized or uniform group or groups; organize systematically
4. to organize in a rigid system under strict discipline and control