JAMBING
Verb
jambing
present participle of jamb
Source: Wiktionary
JAMB
Jamb, n. Etym: [Prov. E. jaumb, jaum, F. jambe a leg, jambe de force
a principal rafter. See Gambol.]
1. (Arch)
Definition: The vertical side of any opening, as a door or fireplace;
hence, less properly, any narrow vertical surface of wall, as the of
a chimney-breast or of a pier, as distinguished from its face. Gwilt.
2. (Mining)
Definition: Any thick mass of rock which prevents miners from following the
lode or vein.
Jamb, v. t.
Definition: See Jam, v. t.
Source: Webster’s Unabridged Dictionary 1913 Edition