مَسَاجِدُ has the familiar singular مَسْجِدٌ and means places of prostration, mosques. Its plural exhibits the mafāʿil broken-plural shape.
The kasrah in the accepted noun masjid is established by Arabic usage. Since the related verb is سَجَدَ — يَسْجُدُ, this lexical form should not be rebuilt mechanically from the introductory rule alone; it is an important attested exception.
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Meaning and singular of مَسَاجِدُ
Ism al-Ẓarf: Meaning, Patterns, Paradigm and Derivation
مَسَاجِدُ has the familiar singular مَسْجِدٌ and means places of prostration, mosques. Its plural exhibits the mafāʿil broken-plural shape.
The kasrah in the accepted noun masjid is established by Arabic usage. Since the related verb is سَجَدَ — يَسْجُدُ, this lexical form should not be rebuilt mechanically from the introductory rule alone; it is an important attested exception.