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2.3
History
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jamb
noun
[ dʒam ]
• a side post or surface of a doorway, window, or fireplace.
• "he leaned against the door jamb"
Similar:
post
,
doorpost
,
upright
,
frame
,
pillar
,
Origin:
Middle English: from Old French jambe ‘leg, vertical support’, based on Greek kampē ‘joint’.