"leader who maintains excessive bureaucratic control," 1888, from Pooh Bah, the name of the "Lord High Everything Else" character in Gilbert and Sullivan's "The Mikado" (1885).
early 15c., regulaten, "adjust by rule, method, or control," from Late Latin regulatus, past participle of regulare "to control by rule, direct," from Latin regula "rule, straight piece of wood" (from PIE root *reg- "move in a straight line," with derivatives meaning "to direct in a straight line," thus "to lead, rule").
Meaning "to govern by restriction" is from 1620s. Sense of "adjust (a clock, etc.) with reference to a standard of accuracy" is by 1660s. Related: Regulated; regulating.
c. 1400, "moderate state of cold, coolness," from cool (adj.). Meaning "one's self-control, composure" (the thing you either keep or lose) is from 1966.
Meaning "having no power to accomplish anything" is from mid-15c.; that of "completely lacking in sexual power" (of males) is from mid-15c. Middle English also had a native term for this: Cunt-beaten (mid-15c.). The figurative sense in Latin was "without self-control, headstrong, violent, ungovernable, lacking self-restraint," which sometimes is found in English (OED cites examples from Spenser, Massinger, Dryden, and Pope). Related: Impotently.
"filmmaker whose influence and artistic control are so great that he is regarded as the author of the movie," 1962, from French, literally "author" (see author (n.)).
early 15c., manumitten, "set (a slave or captive) free," from Latin manumittere "to release from one's power, set at liberty, emancipate," literally "to send from one's 'hand'" (i.e. "control"), from the phrase manu mittere "release from control," from manu, ablative of manus "power of a master," literally "hand" (from PIE root *man- (2) "hand") + mittere "let go, release" (see mission). Related: Manumitted; manumitting. Alternative form manumiss, manumise was sometimes used 16c.-19c.
"pertaining to administration, having to do with the managing of public affairs," 1731, from Latin administrativus, from administrat-, past-participle stem of administrare "to manage, control, superintend" (see administer). Related: Administratively.