ل ق حl-q-ḥ
(ف) لَقَحَ يَلْقَحُ لَقْحًاlaqaḥa yalqaḥu laqḥan: to fertilize (by placing the blossom of the male date-palm in the female), to impregnate (pollination) (this verb is not used in the Quran).
لَاقِحٌlāqiḥ pl. لَوَاقِحُlawāqiḥu (active participle, ism fāʿil): fertilizing; used for both masculine and feminine. Only once in the Quran, in the description of the winds: ﴿وَاَرْسَلْنَا الرِّيٰحَ لَوَاقِحَ﴾ (Al-Ḥijr 15:22)