(ض) طَارَ يَطِيْرُ طَيْرًاṭāra yaṭīru ṭayran: for something to fly; to spread. ﴿وَلَا طٰٓئِرٍ يَّطِيْرُ بِجَنَاحَيْهِ﴾ (Al-Anʿām 6:38)
طَائِرٌṭāʾir pl. طَيْرٌṭayr (active participle, ism fāʿil): that which flies; occurs in various senses: (1) bird (2) deeds (because once done they pass out of a person's hands, i.e. they fly away) (3) ill omen, misfortune (the Arabs used to take omens from birds; later it came to be used for ill omen rather than omen in general). ﴿وَكُلَّ اِنْسَانٍ اَلْزَمْنٰهُ طٰٓئِرَهُۥ فِيْ عُنُقِهِۦ﴾ (Al-Isrāʾ 17:13)
Form V (tafaʿʿul) تَطَيَّرَ يَتَطَيَّرُ تَطَيُّرًاtaṭayyara yataṭayyaru taṭayyuran (and اِطَّيَّرَiṭṭayyara): to take as an ill omen; to regard as inauspicious. ﴿قَالُوا اطَّيَّرْنَا بِكَ﴾ (An-Naml 27:47)
Form X (istifʿāl) اِسْتَطَارَ يَسْتَطِيْرُ اِسْتِطَارَةًistaṭāra yastaṭīru istiṭāratan: to spread out, to scatter.
مُسْتَطِيْرٌmustaṭīr (active participle, ism fāʿil): that which spreads out, scattering. ﴿يَخَافُوْنَ يَوْمًا كَانَ شَرُّهُۥ مُسْتَطِيْرًا﴾ (Al-Insān 76:7)