محَصَ يمحَص، مَحْصًا، فهو ماحِص، والمفعول مَمْحوص

تفحَّصها بتروٍّ وإمعان، قلَّبها من الوجوه كلِّها، درسها بعناية ودقَّة

🇬🇧 Translation:

Examined the idea in his mind calmly and thoroughly, turned it over from all aspects, studied it carefully and accurately.