| 74675 | Yaweyuha | ya | | | Scott (1978) | |
| 32521 | Siane | ya | | | Salisbury (1956) | |
| 32143 | Siane | ya | | | SIL (1987) | |
| 74665 | Proto-Eastern-Central | *ya | | | Scott (1978) | |
| 220888 | Yaweyuha | y̠a | | | SIL (1965) | |
| 74673 | Siane | yá | | | Scott (1978) | |
| 74667 | Fore | yá: | | | Scott (1978) | |
| 74668 | Gadsup | yaani | | | Scott (1978) | |
| 258331 | Maria (Maiagolo Dialect) | yabo | | | Dutton (1970) | tree |
| 209121 | Proto-Doromu | *yabo | | | Ross (2014) | tree |
| 209113 | Proto-Maria | *yabo | | | Ross (2014) | tree |
| 208674 | Proto-Manubaran | *yabo | | | Ross (2014) | tree |
| 258334 | Maria (Maranomu Dialect) | ˈyabo | | | Dutton (1970) | tree |
| 258338 | Maria | ˈyabo | | | Dutton (1970) | tree |
| 258329 | Doromu-Koki (Bareika Dialect) | ˈyabo | | | Dutton (1970) | tree |
| 258333 | Doromu-Koki (Lofaika Dialect) | ˈyabo | | | Dutton (1970) | tree |
| 258330 | Doromu-Koki (Aramaika Dialect) | ˈyabo | | | Dutton (1970) | tree |
| 91366 | Kâte | yâc | tree | | McElhanon (1967) | tree |
| 74678 | Inoke-Yate | yafa | | | Scott (1978) | |
| 74664 | Benabena | yáfa | | | Scott (1978) | |
| 74672 | Kamano | yáfa | | | Scott (1978) | |
| 213254 | Abaga | yafad̶̯e | | | SIL (1966) | |
| 24048 | Ormu | yai | | | Voorhoeve (1975) | |
| 91364 | Mape | yâk | tree | | McElhanon (1967) | tree |
| 7655 | Yimas | yan | | | Foley (1986) | |
| 163823 | Yimas | yan | | | Davies and Comrie (1985) | tree |
| 196779 | Yawiyo (Wosawari Dialect) | yanu | | | Conrad and Dye (1975) | |
| 7861 | Murik | yarar | | | Foley (1986) | |
| 37836 | Western Pantar (Biangwala Dialect) | y'attu | | | Stokhof (1975) | |
| 37133 | Western Pantar (Mauta Tubal Dialect) | y'attu | | | Stokhof (1975) | |
| 23901 | Yetfa | yau | | | Voorhoeve (1975) | |
| 74676 | Yagaria | yáva | | | Scott (1978) | |
| 258336 | Maria (Uderi Dialect) | ˈyavo | | | Dutton (1970) | tree |
| 231933 | Yagaria (Hira Dialect) | y̶awa | zawa | | SIL (2000) | |
| 24758 | Wabo | yay | | | Voorhoeve (1975) | |
| 19008 | Sowari | ya-yeŋgan | | | Voorhoeve (1975) | |
| 18482 | Aimele | yebe | | | Shaw (1986) | |
| 27142 | Ari | yei | | | Reesink (1976) | |
| 179251 | Watiwa | yɛn | | | Z'graggen (1980) | tree |
| 15820 | Sonia | yep | | | Shaw (1986) | |
| 74666 | Proto-Eastern | *yë-V | | | Scott (1978) | |
| 230362 | Awyu, South (Syiagha Dialect) | yi | 'tree, wood, firewood' | | Healey (1970) | |
| 25606 | Awyu, South (Syiagha Dialect) | yi | | | Voorhoeve (1975) | |
| 55345 | Yegha (Oukena Dialect) | yi | tree | | Smallhorn (2011) | |
| 55341 | Ewage-Notu | yi | tree | | Smallhorn (2011) | |
| 260736 | Ewage-Notu | yi | | | Wilson (1969) | |
| 55344 | Yegha (Ambe-Dofo Dialect) | yii | type of tree | | Smallhorn (2011) | |
| 229395 | Proto-Awyu | *yin | wood, fire | | Healey (1970) | |
| 229060 | Proto-Awyu-Dumut | *yin | wood, fire | | Healey (1970) | |
| 198019 | Yetfa | yo | | | Conrad and Dye (1975) | |
