What is the singular of مَحَارِيبُ?

Miscellaneous Morphological Explanations: Eight Rules for Wāw, Yāʾ, Alif and Hamzah

• مِحْرَابٌ
• مِفْتَاحٌ
• صَحِيفَةٌ
• أَوَّلٌ