تَقْعِيبٌ
1.
[as verbal noun of the pass. v. قُعِّبَ], used in relation to a solid hoof, means (tropical:) The being
مُقَبَّب [i. e. round, or hemispherical,] like the [drinking-cup, or bowl, called] قَعْب. (K, TA. [See also مُقَعَّبٌ.])
2.
And التَّقْعِيبُ signifies تَقْعِيرُ الكَلَامِ; (K;) or تَقْعِيبُ الكَلَامِ signifies تَقْعِيرُهُ; (S, O;) [or التَّقْعِيبُ فِى الكَلَامِ signifies التَّقْعِيرُ فِيهِ, i. e. (tropical:) The speaking with a guttural voice, or from the furthest part of the fauces; or the doing thus, with a twisting of the sides of the mouth; and opening the mouth so that it becomes as though it were a cup such as is called
قَعْب: (see مُقَعِّبٌ:)] you say, قَعَّبَ فِى كَلَامِهِ and قَعَّرَ; both meaning the same. (L, TA.)