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مصدر maṣdar n. of place fr. صدر 'to return, or go back'

A مصدر maṣdar (n. of place fr. صدر 'to return, or go back'), s.m. 'Place whence one returns, or goes, or turns away'; place of issuing or proceeding; origin, source, spring, theme; (in Gram.) the root (of a word) from which proceed the derivatives of verbs, an infinitive noun, nomen verbi, or nomen actionis.

مصادر maṣādir

A مصادر maṣādir, s.m. pl. (of maṣdar, q.v.), Sources; (in Gram.) infinitive nouns, nomina verbi or actionis.

مصدور maṣdūr pass. part. of صدر 'to return, or go back,' c.

A مصدور maṣdūr (pass. part. of صدر 'to return, or go back,' &c.), part. Issued; derived; derivative.