Hypertext Webster Gateway: "clevis"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Clevis \Clev"is\, n. [Cf. {Cleave} to adhere, {Clavel}.]
A piece of metal bent in the form of an oxbow, with the two
ends perforated to receive a pin, used on the end of the
tongue of a plow, wagen, etc., to attach it to a draft chain,
whiffletree, etc.; -- called also {clavel}, {clevy}.
From WordNet (r) 1.7 (wn)
clevis
n : a coupling to attach a drawbar to a plow or wagon or trailer
etc.
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