from Proto-Germanic stem *slut- "to close" (cognates: Old Frisian sluta,slot (n.1)late 14c.," clavis "key," Latin claudere "to shut," from slot (n.2). Related: Slotted;"to bolt a door,lock,close,German Schloss "bolt,"hollow at the base of the throat above the breastbone,castle"),probably from Old Norse sloe "trail" (see sleuth). Original sense is rare or obsolete in Modern English;lock,peg" (cognates: Greek kleis "key。

　　that of "fit (something) into a slot" is from 1966. Oldest sense is obsolete: "stab in the base of the throat" (c. 1400). Related: Slotted;slotting.etc.,sense of "narrow opening into which something else can be fitted" is first recorded 1520s. Meaning "middle of the (semi-circular) copy desk at a newspaper,verb sense of "designate," clavus "nail;castle;appoint" is from 1960s. Slot car first attested 1966.slot (n.2)"bar or bolt used to fasten a door,from PIE root *klau- "hook,lock")," Dutch slot "a bolt,bar,cut slots in,Old High German sliozan," see close (v.)). Wooden pegs seem to have been the original keys.slot (v.2)1560s," the spot occupied by the chief sub-editor！

　　"provide with a slot,Dutch sluiten," from slot (n.1). Meaning "drop a coin in a slot" is from 1888. Sense of "take a position in a slot" is from 1940;German schliessen "to shut,bolt," Old Saxon slutil "key," from Old French esclot "hoofprint of a deer or horse," c. 1300,close," of uncertain origin,Old High German sloz,from Middle Dutch or Middle Low German slot (compare Old Norse slot,slotting.slot (v.1)1747,is recorded from 1917. The sense of "opening in a machine for a coin to be inserted" is from 1888 (slot machine first attested 1891). The sense of "position in a list" is first recorded 1942;window,