| 29040 | Zorop | sukur | | | Voorhoeve (1971) | |
| 23443 | Zorop | sukur | | | Voorhoeve (1975) | |
| 29982 | Zimakani (South Boazi Dialect) | dëvě | | | Voorhoeve (1970) | |
| 27992 | Zimakani (Begua Dialect) | pɔi̯ta | | | Voorhoeve (1970) | |
| 31100 | Zimakani | pɔi̯ta | | | Voorhoeve (1970) | |
| 52534 | Zia (Mawai Dialect) | mume | darkness | | Smallhorn (2011) | |
| 52535 | Zia (Mawai Dialect) | mu[ne] | night | | Smallhorn (2011) | |
| 52566 | Zia | pĩ | night | | Smallhorn (2011) | |
| 52533 | Zia | mume | night | | Smallhorn (2011) | |
| 25383 | Yongkom | amki | | | Voorhoeve (1975) | |
| 126251 | Yoidik | tokando | | | Z'graggen (1980) | night |
| 164855 | Yimas | wutʰ | | | Davies and Comrie (1985) | night |
| 197990 | Yetfa | tɛR᷈ | | | Conrad and Dye (1975) | |
| 26035 | Yelmek | wi | | | Voorhoeve (1975) | |
| 52564 | Yekora | pĩ | night | | Smallhorn (2011) | |
| 20811 | Yei | neŋgu | | | Voorhoeve (1975) | |
| 52583 | Yegha (Oukena Dialect) | tumba | night | | Smallhorn (2011) | |
| 52595 | Yegha (Korafe Dialect) | 'tũba | night, darkness | | Smallhorn (2011) | |
| 52529 | Yegha (Korafe Dialect) | kubi | pitch darkness; clearing of skies after rainstorm | | Smallhorn (2011) | |
| 52594 | Yegha (Korafe Dialect) | tumba | night | | Smallhorn (2011) | |
| 196752 | Yawiyo (Wosawari Dialect) | tatufiya | | | Conrad and Dye (1975) | |
| 73573 | Yaweyuha | lubuka | | | Scott (1978) | |
| 220934 | Yaweyuha | l'u'ƀaka | | | SIL (1965) | |
| 20488 | Yawa | mamane | | | Voorhoeve (1975) | |
| 145028 | Yarawata | itumo | | | Z'graggen (1980) | night |
| 223362 | Yaqay (Wanggate Dialect) | ˈrirɑ | | | Kriens & Lebold (2010) | |
| 223132 | Yaqay (Wairu Dialect) | riˈrɑ | | | Kriens & Lebold (2010) | |
| 222740 | Yaqay (Kotup Dialect) | ˈutuko | | | Kriens & Lebold (2010) | |
| 222741 | Yaqay (Kotup Dialect) | ˈrirɑ | | | Kriens & Lebold (2010) | |
| 220329 | Yaqay (Kogo Dialect) | riˈkɑ | | | Kriens & Lebold (2010) | |
| 23021 | Yaqay | rira | | | Voorhoeve (1975) | |
| 29147 | Yaqay | rira | | | Voorhoeve (1971) | |
| 182027 | Yangulam | ʌlu | | | Z'graggen (1980) | night |
| 19846 | Yali, Pass Valley | ẽinival | | | Voorhoeve (1975) | |
| 26968 | Yali, Angguruk | kʋpmʋ | | | Bromley (1967) | |
| 19886 | Yale, Korsarek | sinak | | | Voorhoeve (1975) | |
| 33923 | Yale, Korsarek | imbal | | | Heeschen (1978) | |
| 22206 | Yahadian | babrite | | | Voorhoeve (1975) | |
| 1511 | Yagwoia | hikwɨna | | | Lloyd (1973) | |
| 231962 | Yagaria (Hira Dialect) | hᵊni | | | SIL (2000) | |
| 73574 | Yagaria | haní(na) | | | Scott (1978) | |
| 182014 | Yabong | beisu | | | Z'graggen (1980) | night |
| 145027 | Yaben | itumu | | | Z'graggen (1980) | night |
| 24707 | Woi | tiuru | | | Voorhoeve (1975) | |
| 2211 | Wiru | likonu | | | Franklin (1973) | |
| 227293 | Wipi (Zim Dialect) | sǐwəñ | | | Fleischmann and Turpeinen (1976) | |
| 226805 | Wipi (Yuta Dialect) | tšowonye | | | Fleischmann and Turpeinen (1976) | |
| 227386 | Wipi (Wonie Dialect) | səwən | | | Fleischmann and Turpeinen (1976) | |
| 226643 | Wipi (Wipim Dialect) | səwəːŋ | | | Fleischmann and Turpeinen (1976) | |
| 226347 | Wipi (Ume Dialect) | sɨřɨm | | | Fleischmann and Turpeinen (1976) | |
