also over-think, "exhaust oneself with too much thinking," 1650s, from over- + think (v.). Related: Overthought; overthinking.

c. 1300, ouerthrouen, "to knock down, throw down, cast headlong," from over- + throw (v.). Figurative sense of "to cast down from power, defeat" is attested from late 14c. Related: Overthrown; overthrowing. Earlier in same senses was Middle English overwerpen "to overturn (something), overthrow; destroy," from Old English oferweorpan (see warp (v.)).

mid-15c., overthrou, "destruction, downfall, action of overthrowing," from over- + throw (n.). Meaning "state of being overthrown" is by 1903.

1846, "time above the regular hours of work, time during which one works beyond the regular hours," from over- + time (n.). In reference to the pay given for this by 1916. Sporting sense first attested 1921, in an ice hockey context.

1550s, "to tire excessively, fatigue to exhaustion" (trans.), from over- + tire (v.). Intransitive sense of "become excessively fatigued" is by 1630s. Related: Overtired; overtiring.

"in an overt manner," early 14c., from overt + -ly (2).

1867, in music, "a harmonic, an upper partial tone," from over- + tone (n.); a loan-translation of German Oberton, which was first used by German physicist Hermann Ludwig Ferdinand von Helmholtz (1821-1894) as a contraction of Overpartialton "upper partial tone." Figurative sense of "subtle implication" is from 1890, in William James.

"rise above or beyond the top of," 1560s, from over- + top (v.). Related: Overtopped; overtopping.

"tower or soar too high," 1830, from over- + tower (v.). Related: Overtowered; overtowering.

also over-trouble, "to trouble excessively," 1580s, from over- + trouble (v.). Related: Overtroubled; overtroubling.