trepan

(trē pan, tri-)

noun

  1. an early form of the trephine
  2. a heavy boring tool for sinking shafts, quarrying, etc.

Origin: ME trepane < ML trepanum < Gr trypanon, carpenters' tool, auger, trepan < trypan, to bore < IE *treup- < base *ter-, to bore, rub > throw

transitive verb trepanned, trepanning

  1. trephine
  2. to cut a disk out of (a metal plate, ingot, etc.)

Related Forms:

noun

  1. a person or thing that tricks, traps, or ensnares
  2. a trick; stratagem; trap

Origin: older trapan, prob. < trap, but infl. by fig. use of trepan

transitive verb trepanned, trepanning

Archaic to trick, trap, or lure

See trepan in American Heritage Dictionary 4

noun
  1. A rock-boring tool used in mining for sinking shafts.
  2. Medicine A trephine.
transitive verb tre·panned, tre·pan·ning, tre·pans
  1. To bore (a shaft) with a trepan.
  2. Medicine To trephine.

Origin:

Origin: Middle English trepane, surgical crown saw

Origin: , from Medieval Latin trepanum

Origin: , from Greek trūpanon, borer

Origin: , from trūpān, to pierce

Origin: , from trūpē, hole; see terə-1 in Indo-European roots

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Related Forms:

  • trepˌa·naˈtion (trĕpˌə-nāˈshən) noun

transitive verb tre·panned also tra·panned, tre·pan·ning also tra·pan·ning, tre·pans also tra·pans
To trap; ensnare.
noun
  1. A trickster.
  2. A trick or snare.

Origin:

Origin: Origin unknown

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