| 159563 | Telefol | imaan | | | McElhanon and Voorhoeve (1970) | urine |
| 191678 | Tauya | iʔe | | | Z'graggen (1980) | urine |
| 222707 | Tause (Weirate Dialect) | ti | | | Clouse (1997) | |
| 222708 | Tause | ti | | | Clouse (1997) | |
| 211970 | Tangko | ˈjæmuːn | | | Hughes (2009) | |
| 177816 | Sumau | iŋki | | | Z'graggen (1980) | urine |
| 159570 | Suki | guni | | | McElhanon and Voorhoeve (1970) | urine |
| 159633 | Suena | susu | | | McElhanon and Voorhoeve (1970) | urine |
| 159571 | Southern Kiwai | ono | | | McElhanon and Voorhoeve (1970) | urine |
| 177815 | Sop | i:ŋgi | | | Z'graggen (1980) | urine |
| 159616 | Somba-Siawari (Mindik Dialect) | tasi | | | McElhanon and Voorhoeve (1970) | urine |
| 159615 | Somba-Siawari (Burum Dialect) | tasi | | | McElhanon and Voorhoeve (1970) | urine |
| 159591 | Som | piut | | | McElhanon and Voorhoeve (1970) | urine |
| 213731 | Som | piyutŋi | | | SIL (1968) | |
| 177808 | Siroi | ŋule | | | Z'graggen (1980) | urine |
| 177809 | Siroi | sʌroro | | | Z'graggen (1980) | urine |
| 177801 | Sinsauru | i:gi | | | Z'graggen (1980) | urine |
| 121569 | Silopi | deip | | | Z'graggen (1980) | urine |
| 191664 | Sileibi | bɨ | | | Z'graggen (1980) | urine |
| 222718 | Sikaritai | sig̚ | | | Clouse (1997) | |
| 121551 | Sihan | heva- | | | Z'graggen (1980) | urine |
| 159610 | Sialum | wadzi | | | McElhanon and Voorhoeve (1970) | urine |
| 159626 | Sene | fidi | | | McElhanon and Voorhoeve (1970) | urine |
| 159548 | Sempan | itake | | | McElhanon and Voorhoeve (1970) | urine |
| 177803 | Sausi | yainɛ | | | Z'graggen (1980) | urine |
| 121562 | Saruga | zeipa | | | Z'graggen (1980) | urine |
| 121560 | Samosa | se:gu | | | Z'graggen (1980) | urine |
| 159568 | Samo | ãr | | | McElhanon and Voorhoeve (1970) | urine |
| 177829 | Sam | usil | | | Z'graggen (1980) | urine |
| 177814 | Saep | susoh | | | Z'graggen (1980) | urine |
| 159576 | Riantana | yan | | | McElhanon and Voorhoeve (1970) | urine |
| 177823 | Rerau | keaŋgu | | | Z'graggen (1980) | urine |
| 121567 | Rempi | silol | | | Z'graggen (1980) | urine |
| 159581 | Rawa | usore | | | McElhanon and Voorhoeve (1970) | urine |
| 121558 | Rapting | solan | | | Z'graggen (1980) | urine |
| 177811 | Pulabu | sʌbᵘlo | | | Z'graggen (1980) | urine |
| 196500 | Proto-West-Tariku | *ti^ | | | Clouse (1993) | |
| 212521 | Proto-West-Tariku | *ti^ | | | Clouse (1997) | |
| 184693 | Proto-Trans-New-Guinea | *[si]si | | | Pawley (2005) | |
| 207490 | Proto-Trans-New-Guinea | *sisi | | | Ross (2014) | urine |
| 207264 | Proto-Trans-New-Guinea | *(si)si | | | Ross (2014) | urine |
| 184695 | Proto-Trans-New-Guinea | *pisi | | | Pawley (2005) | |
| 184694 | Proto-Trans-New-Guinea | *siti | | | Pawley (2005) | |
| 207200 | Proto-Tibor-Omosa | *ifu | | | Ross (2014) | urine |
| 212520 | Proto-Tariku | *tiCi | | | Clouse (1997) | |
| 199329 | Proto-Tariku | *tiCi | | | Clouse (1993) | |
| 206710 | Proto-South-Adelbert | *i:ŋgi | | | Ross (2014) | urine |
| 209542 | Proto-Rai-Coast | *i:ŋgi | | | Ross (2014) | urine |
| 208448 | Proto-Rai-Coast | *igi | | | Ross (2014) | urine |
| 208636 | Proto-Pihom | *isak | | | Ross (2014) | urine |
