Origin and history of cog

1777, "a projecting part of a rotating machinery used to impart motion to another part," from Dutch cam "cog of a wheel,"...

c. 1200, "fighting equipment, armor and weapons," probably from Old Norse gørvi (plural gørvar) "apparel, gear," related to görr, gørr, gerr "skilled, accomplished; ready, willing," and to gøra, gørva "to make, construct, build; set in order, prepare," a very frequent verb in Old

c. 1300, "madness, insanity; fit of frenzy; rashness, foolhardiness, intense or violent emotion, anger, wrath; fierceness in battle; violence" (of storms, fire, etc.), from Old French rage, raige "spirit, passion, rage, fury, madness" (11c.), from Medieval Latin rabia, from Latin

c. 1300, "to unite (things) into a whole, combine, put or bring together; juxtapose," also "unite, be joined" (intrans.), from joign-, stem of Old French joindre "join, connect, unite; have sexual intercourse with" (12c.), from Latin iungere "to join together, unite, yoke," from

mid-15c., subordinat, "having an inferior rank, arranged so that it is dependent on another," from Medieval Latin subordinatus "placed in a lower order, made subject," past participle of subordinare "place in a lower order," from Latin sub "under" (see sub-) + ordinare "arrange,

Old English toð (plural teð), from Proto-Germanic *tanthu- (source also of Old Saxon, Danish, Swedish, Dutch tand, Old Norse tönn, Old Frisian toth, Old High German zand, German Zahn, Gothic tunþus), from PIE root *dent- "tooth." Plural teeth is an instance of i-mutation. The los

"held in reserve, held ready to furnish assistance," 1540s, from Latin subsidiarius "belonging to a reserve, of a reserve, reserved; serving to assist or supplement," from subsidium "a help, aid, relief, troops in reserve" (see subsidy). As a noun, c. 1600, "subsidiary thing, one

c. 1200, rolle, "rolled-up piece of parchment or paper, scroll" (especially one inscribed with an official record), from Old French rolle "document, parchment scroll, decree" (12c.), Medieval Latin rotulus "a roll of paper" (source also of Spanish rollo, Italian rullo), from Lati

Old English dwellan "to lead into error, deceive, mislead," related to dwelian "to be led into error, go wrong in belief or judgment," from Proto-Germanic *dwaljana "to delay, hesitate," *dwelana "go astray" (source also of Old Norse dvelja "to retard, delay," Danish dvæle “to li

early 14c., "seagoing vessel of moderate size with sails," from Old French barge "boat, ship," Old Provençal barca, from Medieval Latin barga, perhaps from Celtic, or perhaps from Latin *barica, from Greek baris "Egyptian boat," from Coptic bari "small boat." From late 14c. as "r