| 232993 | Owiniga | ʔmi | | | SIL (1972) | |
| 198563 | Owiniga | bi | | | Conrad and Dye (1975) | |
| 243932 | Pahi | oʔwi | | | Laycock (1968) | |
| 143307 | Pal | yʌk | | | Z'graggen (1980) | (water) |
| 143303 | Pamosu | opɛt | | | Z'graggen (1980) | (water) |
| 124331 | Panim | wʌ | | | Z'graggen (1980) | water |
| 23194 | Papasena | waru | | | Voorhoeve (1975) | |
| 197386 | Papi | ařukowa | | | Conrad and Dye (1975) | |
| 24640 | Papuma | mare | | | Voorhoeve (1975) | |
| 143312 | Parawen | yʌga | | | Z'graggen (1980) | (water) |
| 158465 | Pare | ɔmɔɛ | | | McElhanon and Voorhoeve (1970) | water |
| 158466 | Pare | mɔa | | | McElhanon and Voorhoeve (1970) | water |
| 158464 | Pare | omɛ | | | McElhanon and Voorhoeve (1970) | water |
| 16011 | Pare | ume | | | Shaw (1986) | |
| 2112 | Pare | ume | | | Shaw (1973) | |
| 128 | Pawaia | sa | | | Trefry (1969) | |
| 5192 | Pawaia | sa | | | Macdonald (1973) | |
| 193102 | Paynamar | yamba | | | Z'graggen (1980) | water |
| 163777 | Pinai-Hagahai (Aramo Dialect) | gɯ | | | Davies and Comrie (1985) | water |
| 163790 | Pinai-Hagahai (Nangenuwetan Dialect) | gɯ | | | Davies and Comrie (1985) | water |
| 163791 | Pinai-Hagahai (Wakadadap Dialect) | gɯ | | | Davies and Comrie (1985) | water |
| 24680 | Pom | dia | | | Voorhoeve (1975) | |
| 243929 | Pouye | you | | | Laycock (1968) | |
| 229316 | Proto-Awyu | *óxo | [S] river, water | | Healey (1970) | |
| 229315 | Proto-Awyu | *ɔx | water | | Healey (1970) | |
| 228990 | Proto-Awyu-Dumut | *ox | river | | Healey (1970) | |
| 14284 | Proto-Baraic | *[i]do | | | Dutton (2010) | |
| 212216 | Proto-Central-Tariku | *ida | | | Clouse (1997) | |
| 199393 | Proto-Central-Tariku | *ida | | | Clouse (1993) | |
| 207067 | Proto-Croisilles | *yake | | | Ross (2014) | water |
| 206653 | Proto-Doromu | *koru | | | Ross (2014) | water |
| 229502 | Proto-Dumut | *ok | | | Healey (1970) | |
| 201815 | Proto-Dumut | *ok | | | Voorhoeve (2000) | |
| 74751 | Proto-Eastern | *no-N | | | Scott (1978) | |
| 74750 | Proto-Eastern-Central | *no | | | Scott (1978) | |
| 199452 | Proto-East-Tariku | *wadi | | | Clouse (1993) | |
| 212217 | Proto-East-Tariku | *wadi | | | Clouse (1997) | |
| 196567 | Proto-Far West | *deire | | | Clouse (1993) | |
| 212213 | Proto-Far West | *deire | | | Clouse (1997) | |
| 96727 | Proto-Kwalean | *vou | | | Ross (2014) | water, river |
| 96724 | Proto-Kwalean | *wara | | | Ross (2014) | water |
| 196620 | Proto-Lakes-Plain | *deida | | | Clouse (1993) | |
| 212212 | Proto-Lakes-Plain | *deida | | | Clouse (1997) | |
| 236030 | Proto-Lower-Sepik | *arɨm | | | Foley (2005) | |
| 235360 | Proto-Lower-Sepik | *arɨm | | | Foley (2005) | |
| 7795 | Proto-Lower-Sepik | *arɨm | | | Foley (1986) | |
| 206879 | Proto-Mabuso | *wa(gu) | | | Ross (2014) | water |
| 206776 | Proto-Mabuso | *zi: | | | Ross (2014) | water |
| 208101 | Proto-Madang | *yag(V) | | | Ross (2014) | water |
| 207086 | Proto-Manubaran | *koru | | | Ross (2014) | water |
