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and ↓ تَقَوَّى (S, K) and ↓ اِقْتَوَى (K) He became strong: (S, K:) vigorous, robust, or sturdy; like اِشْتَدَّ, or the last signifies he became excellent in strength. (TA.) ― -b2- قَوِىَ عَلَيْهِ He had strength, or power, sufficient for it; or he had strength, or power, to endure it; he prevailed against it; namely, travel, adversity, &c. And He or it, prevailed over him, or it. ― -b3- See 4. ― -b4- قَوِىَ is [said to be] originally قَوِوَ, because it is from القُوَّةُ: (I'Ak, p. 368:) but Lth holds قُوَّةٌ to be [anomalous,] originally قُويَةٌ. (TA.) I prefer the former opinion, and think it should be mentioned in art. قو, or I would rather head this art. قو or قوى, like غو or غوى. ISd holds قُوَّةٌ to be from قوو, like ثُوَّةٌ, q. v. from ثوو.

: see شَدَّهُ. ― -b2- قَوَّانِى عَلَيْهِ: see 2 in art. طوق.

He vied with him, strove to surpass him, or contended with him for superiority, (S, K,) in strength: (TA:) i. q. شَادَّهُ. (A, L in art. شد.)

The house became empty, vacant, or unoccupied; (S, Mgh, Msb, K;) as also ↓ قَوِيَت. (S, K.)

He strengthened himself; made himself, or constrained himself to be, strong; affected, or endeavoured to acquire, strength. See 1. ― -b2- تَقَوَّى مِنَ الشَّىْءِ بِقَوْمِهِ: see تَمَنَّعَ.

see 1.

Strength, power, potency, might, or force; contr. of ضَعْفٌ; (S, K;) in body, and in intellect: (TA:) vigour, robustness, or sturdiness; like شِدَّة. ― -b2- قُوَّةٌ A strand; i. e., a single twist of a rope; a yarn; a distinct, and separately twisted, portion, of two or more which, being twisted together, compose the whole, of a rope, and of a string, or thread. See also ثِنْىٌ. ― -b3- A faculty. Ex. السَّمْعُ قُوَّةٌ فِى الاُذُنِ بِهَا تُدْرِكُ الأَصْوَاتَ [السمع is a faculty in the ear by which it perceives sounds]. (TA in art. سمع.) ― -b4- بِالقُوَّةِ Potentially, or virtually; as opposed to بِالفِعْلِ, i. e. actually. ― -b5- قُوَّةُ لَفْظٍ: see لَيْتَ.

, and قَاوِيًا, and مُقْوِيًا: see غَوًى and غَوِىٌّ in art. غو.