(ن) اَثَرَ يَاْثُرُ اَثْرًاathara yāthuru athran: (1) (of a thing) to leave behind a trace that points to its existence. (2) to honour someone.
اَثَرٌathar pl. اٰثَارٌathār (noun, ism dhāt): mark, trace, footprint. ﴿فَانْظُرْ اِلٰٓى اٰثٰرِ رَحْمَتِ اللّٰهِ﴾ (Ar-Rūm 30:50)
اَثَارَةٌathārah: the remnant of a body of knowledge. ﴿اَوْ اَثٰرَةٍ مِّنْ عِلْمٍ﴾ (Al-Aḥqāf 46:4)
Form II (tafʿīl) أَثَّرَ يُؤَثِّرُ تَأْثِيْرًاaththara yuʾaththiru taʾthīran: to influence something; to leave an impression on something (this verb is not used in the Quran).
Form IV (ifʿāl) اٰثَرَ يُؤْثِرُ اِيْثَارًاathara yuʾthiru īthāran: to prefer someone over another. ﴿وَيُؤْثِرُوْنَ عَلٰٓى اَنْفُسِهِمْ﴾ (Al-Ḥashr 59:9)
Form V (tafaʿʿul) تَأَثَّرَ يَتَأَثَّرُ تَأَثُّرًاtaʾaththara yataʾaththaru taʾaththuran: to be influenced by something; to be affected (this verb is not used in the Quran).