مُقْحَمٌ
1.
Redundant; pleonastic; foisted in: applied to a word and to a letter.
2.
حَرْفٌ
مَقْحَمَةٌ
A letter inserted without reason.
مُقْحَمَةٌ is also applied in like manner to a word. [In a copy of the S, in article بهت, I find it written مُقْحِمَةٌ]: i. q.
زَايءِدَةٌ. (TA in article بهت.)