(ض) وَسَمَ يَسِمُ وَسْمًا وَسِمَةًwasama yasimu wa-sman wa-simatan (original form: وَسَمَ يَوْسِمُwasama yawsimu): to put a mark on something, to brand. Only once in the Quran: ﴿سَنَسِمُهُۥ عَلَي الْخُرْطُوْمِ﴾ (Al-Qalam 68:16)
Form V (tafaʿʿul) تَوَسَّمَ يَتَوَسَّمُ تَوَسُّمًاtawassama yatawassamu tawassuman: to try to discover the truth by observing marks and signs, to use discernment; مُتَوَسِّمٌmutawassim pl. مُتَوَسِّمُوْنَmutawassimūna (active participle, ism fāʿil): one possessed of discernment. Only once in the Quran: ﴿اِنَّ فِيْ ذٰلِكَ لَاٰيٰتٍ لِّلْمُتَوَسِّمِيْنَ﴾ (Al-Ḥijr 15:75) Note: the "مُسَوَّمَةmusawwamah" of ﴿وَالْخَيْلِ الْمُسَوَّمَةِ﴾ (Āl ʿImrān 3:14) is from the root s-w-m.