مُدَرَّبٌ
1.
A man, (S, M,) or an old man, (T,) tried, or proved, in affairs, and whose qualities have become known; or tried, or proved, and strengthened by experience in affairs; experienced, or expert: or whose qualities have been tried, or proved: synonym مُجَرَّبٌ (T, S, M, A, * K) and مُنَجَّذٌ: (M, K:) and
مُدَرِّبٌ is synonym with مُجَرّبٌ: (S:) or in every word of the measure مُفَعَّلٌ synonym with مُجَرَّبٌ, the medial radical letter may be pronounced with fet-h or with kesr, except مُدَرَّبٌ. (M, K.)
3.
And A camel well trained, and accustomed to be ridden, and to go through the [narrow passes in mountains called] دُرُوبٌ: feminine with ة. (K.)