(س) سَوِيَ يَسْوٰى سَوَاءًsawiya yaswā sawāʾan: to be level, to be equal in state or quantity.
سَوَاءٌsawāʾ (also a noun, ism dhāt): equal; the middle or centre of a thing. ﴿سَوَآءٌ عَلَيْهِمْ ءَاَنْذَرْتَهُمْ اَمْ لَمْ تُنْذِرْهُمْ﴾ (Al-Baqarah 2:6)
سَوِيٌّsawiyy (adjective on the pattern of فَعِيْلٌfaʿīl): free of deficiency or excess in every respect, perfect. ﴿فَتَمَثَّلَ لَهَا بَشَرًا سَوِيًّا﴾ (Maryam 19:17)
Form VIII (iftiʿāl) اِسْتَوٰى يَسْتَوِيْ اِسْتِوَاءًistawā yastawī istiwāʾan: (1) (of two things) to be equal to one another. ﴿قُلْ هَلْ يَسْتَوِي الَّذِيْنَ يَعْلَمُوْنَ وَالَّذِيْنَ لَا يَعْلَمُوْنَ﴾ (Az-Zumar 39:9) (2) with «اِلٰىilā»: to turn towards, to direct oneself to. ﴿ثُمَّ اسْتَوٰٓى اِلَي السَّمَآءِ﴾ (Al-Baqarah 2:29) (3) with «عَلٰىʿalā»: to prevail over, to be established upon. ﴿ثُمَّ اسْتَوٰى عَلَي الْعَرْشِ﴾ (Al-Aʿrāf 7:54)
Form II (tafʿīl) سَوّٰى يُسَوِّيْ تَسْوِيَةًsawwā yusawwī taswiyatan: to free something of deficiency or excess; to make it fitting and proportionate in every respect, i.e. to finish it to perfection; to level or make even. ﴿الَّذِيْ خَلَقَ فَسَوّٰى﴾ (Al-Aʿlā 87:2)
Form III (mufāʿalah) سَاوٰى يُسَاوِيْ مُسَاوَاةًsā yusāwī musāwātan: to make two or more things equal. ﴿حَتّٰٓى اِذَا سَاوٰى بَيْنَ الصَّدَفَيْنِ﴾ (Al-Kahf 18:96)