دَمْدَمَ
1.
, [verbal noun دَمْدَمَةٌ,] He smeared, or did over, a thing much, or exceedingly, or with energy: and he so covered over a thing. (Ham p. 461. [But the context there indicates that the verb in these two senses should be correctly written دمّم.])
2.
See also 1, near the middle of the paragraph, and in five places after that.