قصى2 قَصَّى: see قَصَّصَ.5 تَقَصَّى: see تَقَصَّصَ. b2:  تَقَصَّى شُرْبَ المَآءِ فلم يسئر منه شيأ [He drank the water to the uttermost, not leaving any of it remaining]. (TA, in art. شف.) b3:  See 10.10 اِسْتَقْصَى He went to the utmost length, or point, in a question, (K,) and in like manner you say, اِسْتَقْصَى الأَمْرَ and ↓ تَقَصَّاهُ. (TA.) b2: [He exhausted a subject. b3:  He proceeded to extremities. He was, or became, extreme, in an action, &c.] b4:  اِسْتَقْصَى مَسْأَلَتَهُ [He went to the utmost point in questioning him, or asking him,] respecting a thing, so as to draw forth the utmost that he possessed [of information respecting it]. (S, art. نص.) b5:  اِسْتَقْصَى فِى المَسْأَلَةِ and ↓ تَقَصَّى (S, K) both signify the same; (S;) (tropical:)  He reached, or attained, [and elicited, and investigated,] the utmost [that was to be reached, &c.] in the question: (K, TA:) and in like manner استقصى الأَمْرَ and ↓ تقصّاهُ (TA) (tropical:)  [He investigated, or searched, to the utmost the case, or affair;] he reached, or attained, the utmost of the case, or affair, in investigating it. (MA in explanation of the former phrase.) b6:  اِسْتَقْصَى عِلْمَهُ He attained the utmost knowledge of it. b7: اِسْتَقْصَى مَا عِنْدَ نَاقَتِهِ مِنَ السَّيْرِ [He elicited, or exacted, the utmost of his she-camel's pace, or power of going on]. (TA, art. نص.) b8: اِسْتِقْصَآءٌ, metonymically, signifies (tropical:)  The being niggardly, stingy, or avaricious. (Az, TA in art. دنق.) b9:  اِسْتَقْصَيْتُ المَكَانَ [?] i. q.  اِسْتَعْذَيْتُهُ. (TA in art. عذى.) حُطْنِى القَصَا, and القَصَآءَ: and حَاطُونَا القَصَآءَ: &c.: see art. حوط, and see 1 in art. حبو.قُصْيَا is like دُنْيَا and عُلْيَا, with و changed into ى. (ISd in TA, voce بُقْوَى.)