يسر

موسِرٌ ذ [originally مُيْسِرٌ,] Possessing competence, or sufficiency; or rich, or wealthy, or opulent: (M, K:) pl. مَيَاسِيرُ: (Sb, M, K:) [like مَفَالِيسُ, pl. of مُفْلِسٌ; and مَفَاطِيرُ, pl. of مُفْطِرٌ; as though the sing. were مَيْسُورٌ:] but by rule it should be مُوسِرُونَ, for the masc., and مُوسِرَاتٌ for the fem. (Abu-l-Hasan, M.)