| 256965 | Magɨ | ai | | | Daniels (2016) | |
| 144849 | Maia (Pila Dialect) | maya | | | Z'graggen (1980) | (what) |
| 144850 | Maia (Saki Dialect) | maya | | | Z'graggen (1980) | (what) |
| 75138 | Mailu | diada | | | Saville (1912) | |
| 86242 | Mailu (Asiaoro Dialect) | diada | | | Thomson (1975) | |
| 87612 | Mailu (Baibara Dialect) | diada | | | Thomson (1975) | |
| 87064 | Mailu (Borebo Dialect) | dida | | | Thomson (1975) | |
| 88434 | Mailu (Darava Dialect) | diada | | | Thomson (1975) | |
| 88160 | Mailu (Delebai Dialect) | diada | | | Thomson (1975) | |
| 87338 | Mailu (Domara Dialect) | dida | | | Thomson (1975) | |
| 87886 | Mailu (Geagea Dialect) | dida | | | Thomson (1975) | |
| 86516 | Mailu (Ilai Dialect) | aboua | | | Thomson (1975) | |
| 86790 | Mailu (Island Dialect) | diada | | | Thomson (1975) | |
| 221316 | Maiwa | 'dimbae | | | SIL (1973) | |
| 144847 | Mala | alʌm | | | Z'graggen (1980) | (what) |
| 144848 | Mala | maino | | | Z'graggen (1980) | (what) |
| 144842 | Malas | masi | | | Z'graggen (1980) | (what) |
| 181866 | Male | kubɛnkɛl | | | Z'graggen (1980) | what |
| 233177 | Mali (Arambum Dialect) | ad̶iǥa | | | SIL (1985) | |
| 233295 | Mali (Makunga Dialect) | aǥit | | | SIL (1985) | |
| 90510 | Mape | wamo | what | | McElhanon (1967) | what |
| 260014 | Maria (Maiagolo Dialect) | beʔaboto | | | Dutton (1970) | what |
| 260016 | Maria (Maranomu Dialect) | beiboto | | | Dutton (1970) | what |
| 260018 | Maria (Uderi Dialect) | veato | | | Dutton (1970) | what |
| 126073 | Matepi | ʌri | | | Z'graggen (1980) | what |
| 144852 | Mauwake | mawake | | | Z'graggen (1980) | (what) |
| 144856 | Mawak | mamea | | | Z'graggen (1980) | (what) |
| 126071 | Mawan | vɛru | | | Z'graggen (1980) | what |
| 77753 | Maybrat | p-awiya | | | Dol (2007) | |
| 77103 | Mbaniata | ōnia | what? | | Tryon & Hackman (1983) | |
| 77070 | Mbaniata | ōno | what? | | Tryon & Hackman (1983) | |
| 76765 | Mbaniata (Lokuru Dialect) | oa | what? | | Tryon & Hackman (1983) | |
| 76764 | Mbaniata (Lokuru Dialect) | ōnia | what? | | Tryon & Hackman (1983) | |
| 76561 | Mbilua | noiñɔ | what? | | Tryon & Hackman (1983) | |
| 76555 | Mbilua | loma | what? | | Tryon & Hackman (1983) | |
| 76299 | Mbilua (Ndovele Dialect) | noni | what? | | Tryon & Hackman (1983) | |
| 309 | Mena | kombaiɛ | | | Franklin (1973) | |
| 4837 | Menya | ɨvsɨqe | | | Lloyd (1973) | |
| 90504 | Mesem | wana | what | | McElhanon (1967) | what |
| 144851 | Miani | miani | | | Z'graggen (1980) | (what) |
| 218360 | Migabac | omac wiac | | | SIL (1975) | |
| 181844 | Migum | ʌmeran | | | Z'graggen (1980) | what |
| 3106 | Minanibai | augeə | | | Franklin (1973) | |
| 144854 | Moere | namur | | | Z'graggen (1980) | (what) |
| 29623 | Molof | tafe | | | Voorhoeve (1971) | |
| 7289 | Moni (Kemandoga Dialect) | má | | | Larson & Larson (1972) | |
| 193974 | Moresada | ukəmuŋʌmp | | | Z'graggen (1980) | what |
| 3525 | Morigi | etunae | | | Wurm (1973) | |
| 126064 | Mosimo | kata | | | Z'graggen (1980) | what |
| 260021 | Motu | dahaka | | | Dutton (1970) | what |
