ع ص رʿ-ṣ-r
(ض) عَصَرَ يَعْصِرُ عَصْرًاʿaṣara yaʿṣiru ʿaṣran: to wring something and squeeze out its juice; to turn, to make revolve. ﴿اِنِّيْٓ اَرٰىنِيْٓ اَعْصِرُ خَمْرًا﴾ (Yūsuf 12:36)
عَصْرٌʿaṣr (noun, ism dhāt): time, an age (which keeps revolving); the last part of the day. ﴿وَالْعَصْرِ﴾ (Al-ʿAṣr 103:1)
اِعْصَارٌiʿṣār (noun, ism dhāt): a whirlwind. ﴿فَاَصَابَهَآ اِعْصَارٌ فِيْهِ نَارٌ﴾ (Al-Baqarah 2:266)
Form IV (ifʿāl) اَعْصَرَ يُعْصِرُ اِعْصَارًاaʿṣara yuʿṣiru iʿṣāran: to be on the point of being squeezed out.
مُعْصِرَاتٌmuʿṣirāt (active participle, ism fāʿil): clouds laden with water. ﴿وَاَنْزَلْنَا مِنَ الْمُعْصِرٰتِ مَآءً ثَجَّاجًا﴾ (An-Nabaʾ 78:14)