em > ma in other Indo-European Languages (4)
Turner’s A Comparative Dictionary of the Indo-Aryan Languages says Sanskrit word ma means “base of singular oblique cases of 1st person pronoun.” He also provides the cognates of ma in other Indo-European languages and dialects:
Pali maṁ, mayā, mayhaṁ, mama; Aśokan i.e. the language of the Inscriptions of Aśoka maṁ, mayā; Shāhbāzgaṛhī Rock Inscription of Aśoka and Mānsehrā Rock Inscription of Aśoka maa; Girnār, Kālsī, and Dhauli Rock Inscription of Aśoka mama; Language of ‘Kharoṣṭhī Inscriptions discovered by Sir Aurel Stein in Chinese Turkestan’ mama, mahi; Prakrit maṁ, mamaṁ, maē, mama, majjhaṁ; Apabhraṁśa maï˜, mahāriya-, mēra-; Gypsy and European dialects of gypsy me; Palestinian dialect of Asiatic Gypsy of the Nawar ắma; Chilīs, Gauro, Savi, Phalūṛa, and Shina ma; Sindhī and Sirāikī dialect of Sindhī mā̃, mū̃; Lahndā maĩ, mε῀, -m, maĩḍā, maiḍā; Panjābī maĩ, merā; West Pahāṛī, and Jaunsārī dialect of West Pahāṛī mē̃; Gaṛhwālī maĩ, mĩ; Kumaunī maĩ, mī; Nepāli ma, maĩ; Assamese maï, mohora, mora; Bengali mui; Oṛiyā mu, mũ, mohara; Old Awadhī maïṁ, moraü; Hindī maĩ, mujh, merā; Old Mārwāṛī mẽ, meraü; Marāṭhī mī˜, mī, maj̈, māj̈hā; Prasun əm; Tirāhī masi, myāna; Khowār ma; Tōrwālī and Savi mī; Kashmiri mĕ, myônᵘ; Sindhī -mi, mē; West Pahāṛī and Bhadrawāhī dialect of West Pahāṛī maĩ; Gujarātī mε῀, mārũ; Sinhalese mama; Old Gujarātī majha, māharaü; Koṅkaṇī majjo; Gawar-Bati mōna; Gypsy and Greek dialect of European Gypsy minro; south-east European dialects of gypsy moi̦ó, mei̦í; —West Panjābī mε῀rā, West Pahāṛī, Jaunsārī dialect of West Pahāṛī, Gaṛhwālī, Kumaunī, and Nepāli mero.
All these cognates and the following words related to ma originate from Tamil em.
māmaká, mine. asmad, base of oblique cases plural of 1st person pronoun. asmā́ka, ours.