From Wiktionary, the free dictionary
مَا (mā) + أَنَّ (ʔanna)
أَنَّمَا • (ʔannamā)
- only, just, but
609–632 CE, Qur'an, 21:108:قُلْ إِنَّمَا يُوحَى إِلَيَّ أَنَّمَا إِلَٰهُكُمْ إِلَٰهٌ وَاحِدٌ فَهَلْ أَنْتُمْ مُسْلِمُونَ- qul ʔinnamā yūḥā ʔilayya ʔannamā ʔilāhukum ʔilāhun wāḥidun fahal ʔantum muslimūna
- Say, “It is only revealed to me that your god is but one God; so will you be Muslims?”