Fused interrogatives (لِمَ، بِمَ، عَمَّ)

Dropping the Alif from (ما)

When prepositions attach to the interrogative ما (what), it drops its final Alif and becomes simply a Mīm with a Fatha (ـمَ). This spelling is standard in formal Arabic, especially when asking probing questions in academic or philosophical debates.

Fusing with (عن) and (من)

When the prepositions عن (about) or من (from) combine with ما, their final letter (ن) assimilates into the م of ما. We write this with a Shadda over the Mīm to show the fusion, dropping the Alif.

  • عن + ما = عمَّ (About what?)
  • من + ما = مِمَّ (From what?)

Fusing with One-Letter Prepositions

One-letter prepositions connect directly to the Mīm.

  • بـ + ما = بِمَ (With what / By what / In what?)
  • لـ + ما = لِمَ (For what / Why?)

While لماذا is a common word for "why," لِمَ functions identically and is frequently used in formal writing.

Fusing with (على) and (إلى)

The prepositions على (on) and إلى (to) end in an Alif Maqsura (ى). When fused with ـمَ, this final letter becomes a regular Alif (ا).

  • على + ما = علامَ (On what?)
  • إلى + ما = إلامَ (To what?)