LessonsMulḥaq bi-Rubāʿī: Definition, Two Groups and Nine PatternsQuiz

قَلَنْسَة — putting on a cap, in the second unaugmented-parallel pattern.
تَقَلْنُس — the related augmented form in the tadaḥruj subgroup.
The medial nūn remains visible, but taqalnus adds initial tāʾ and changes the verbal-noun ending.
Their templates are distinct: فَعْنَلَة versus تَفَعْنُل, even though the meaning and formative base are related.

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The cap-wearing pair

Mulḥaq bi-Rubāʿī: Definition, Two Groups and Nine Patterns

قَلَنْسَة — putting on a cap, in the second unaugmented-parallel pattern.
تَقَلْنُس — the related augmented form in the tadaḥruj subgroup.
The medial nūn remains visible, but taqalnus adds initial tāʾ and changes the verbal-noun ending.
Their templates are distinct: فَعْنَلَة versus تَفَعْنُل, even though the meaning and formative base are related.