The vertical wooden or stone frame or jamb on either side of a doorway that supports the door and lintel.
From 'door' + 'post' (from Old English 'post' meaning a timber or pole stuck in the ground, from Latin 'postis'). This is an architectural term for the vertical structural element of a door frame.
In Jewish tradition, doorposts (mezuzahs) became sacred—a scroll is affixed to the doorpost, and followers touch it as they enter, making this humble structural element a spiritual threshold recognized 3,000 years ago!
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