(tropical:) He trimmed a tree, as though by removing itsجَرَذ, meaning its faulty parts, or knots, which are likened to جِرْذَان [plural of جُرَذٌ]: whence ↓رَجُلٌ مُجَرَّذٌ. (A.)
2.
[And hence,] جرّذهُالدَّهْرُ (tropical:) Time, or fortune, tried and strengthened him by means of experience in affairs. (T, L, TA.)