~ 1
■ verb move with repeated small bobs or jerks.
■ noun a joggling movement.
Origin
C16: frequentative of jog .
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~ 2
■ noun a joint between two pieces of stone, concrete, or timber, consisting of a projection in one of the pieces fitting into a notch in the other, or a small piece let in between the two.
■ verb join with a ~.
Origin
C18: perh. related to jag 1 .