استغشّهُ

(S, K) and ↓ اغتشّهُ (K, TA) He reckoned him, or deemed him, dishonest, or insincere, in action, or advice or counsel; opposite of اِسْتَنْصَحَهُ (S, K) and اِنْتَصَحَهُ; (K;) or, [which means the same,] i. q. عَدَّهُ غَاشًّا: (TA:) or he imagined in him dishonest, or insincere, conduct, or advice or counsel; dissimulation; or the pretending the contrary of what he conceived in his mind. (K.) A poet says,

لَكَ نَاصِحٌ ↓ أَيَا رُبَّ مَنْ تَغْتَشُّهُ

وَمُسْتَنْصَحٍ بِالْغَيْبِ غَيْرُ أَمِينِ

[O man, many a one whom thou reckonest dishonest in action, or advice, is honest therein to thee; and (many a) one who is reckoned honest in action, or advice, in that which is beyond the reach of perception, is not faithful]. (TA)