اِرْتَاهُ
[is synonym with رَاهُ as signifying He saw him, or it, with the eye; and also, with the mind]: see 1, first sentence: or it is [synonym with رَاهُ in the latter sense only, being] from الرَّأْىُ and التَّدْبِيرُ: (S, TA:) or اِرْتَأَى is from رَأْىُ القَلْبِ, (Lth, T,) or from رُوءْيَةُالقَلْبِ, or from الرَّأْىُ, and means he thought, reflected, or considered, and acted deliberately, or leisurely. (IAth, TA.) You say, اِرْتَأَيْنَا فِى الأَمْرِ, and
تَرَاءَيْنَا [i. e. تراءينا فِيهِ] or تَرَاءَيْنَاهُ, (according to different copies of the K,) meaning نَظَرْنَاهُ [or نَظَرْنَاهُنَظَرْنَا فيه, i. e. We looked into, examined, or considered, the affair, or case]. (K.) And اِرْتَاهُ وَاعْتَقَدَهُ [He saw it with his mind, looked into it, examined it, or considered it, and believed it]. (Mgh.)