| 54824 | Zia | gero[sara] | sweet potato | | Smallhorn (2011) | |
| 122823 | Yoidik | sarembʌt | | | Z'graggen (1980) | potato |
| 54822 | Yekora | (gero)[sara] | sweet potato | | Smallhorn (2011) | |
| 54845 | Yegha (Korafe Dialect) | kõba | stonefish, like Stonecat; Catfish-Eel types, catfish types; rhinocerus beetle; yam type | | Smallhorn (2011) | |
| 54828 | Yegha (Korafe Dialect) | ge'ro[ta] | type of sweet potato | | Smallhorn (2011) | |
| 54854 | Yegha (Korafe Dialect) | 'kuta | sweet potato (generic term) | | Smallhorn (2011) | |
| 54853 | Yegha (Korafe Dialect) | kuta | sweet potato | | Smallhorn (2011) | |
| 54817 | Yegha (Ambe-Dofo Dialect) | 'gae | yam | | Smallhorn (2011) | |
| 74429 | Yaweyuha | opa | | | Scott (1978) | |
| 218705 | Yaweyuha | o'pa | | | SIL (1965) | |
| 141927 | Yarawata | maila | | | Z'graggen (1980) | sweet potato |
| 141926 | Yarawata | imsala | | | Z'graggen (1980) | sweet potato |
| 223109 | Yaqay (Wairu Dialect) | kɑbˈrɑrɑ | | | Kriens & Lebold (2010) | |
| 178957 | Yangulam | boloɪ | | | Z'graggen (1980) | potato |
| 231953 | Yagaria (Hira Dialect) | beḷa | "by̶a" | | SIL (2000) | |
| 74431 | Yagaria | baya | | | Scott (1978) | |
| 74430 | Yagaria | bá | | | Scott (1978) | |
| 178944 | Yabong | mbʌk | | | Z'graggen (1980) | potato |
| 141925 | Yaben | me:la | | | Z'graggen (1980) | sweet potato |
| 80831 | Wiru | modó | | | Franklin (1975) | |
| 80823 | West Kewa | saapi | | | Franklin (1975) | |
| 178954 | Waube | kaukau | | | Z'graggen (1980) | potato |
| 178938 | Watiwa | ʌsei | | | Z'graggen (1980) | potato |
| 211017 | Wanggom | ˈbʊndi | | | Hughes (2009) | |
| 141921 | Wanambre | ge:las | | | Z'graggen (1980) | sweet potato |
| 214244 | Wambon | ˈbɔndɛn | | | Hughes (2009) | |
| 122815 | Wamas | wagik | | | Z'graggen (1980) | potato |
| 122832 | Wagi | duræka | | | Z'graggen (1980) | potato |
| 200825 | Wagi (Silibob Dialect) | dorekʰa | | | Spencer et al. (2011) | |
| 200970 | Wagi (Mis Dialect) | durakʰa | | | Spencer et al. (2011) | |
| 200686 | Wagi (Kauris Dialect) | tounam | | | Spencer et al. (2011) | |
| 200547 | Wagi (Kamba Dialect) | tounam | | | Spencer et al. (2011) | |
| 201104 | Wagi (Foran Dialect) | durɛkʰa | | | Spencer et al. (2011) | |
| 178953 | Uyajitaya | maːrupi | | | Z'graggen (1980) | potato |
| 216061 | Uyajitaya (Uya Dialect) | mɑruɸi | | | Lambrecht et al. (2008) | |
| 216985 | Uyajitaya (Udibai Dialect) | bɑtɛtɛ | | | Rueck & Jore (2003) | |
| 216865 | Uyajitaya (Subalulu Dialect) | mɑrubi | | | Rueck & Jore (2003) | |
| 216182 | Uyajitaya (Palipa Dialect) | ɸɑtɛtɛ | | | Rueck & Jore (2003) | |
| 217183 | Uyajitaya (Gisi Dialect) | mɑrubi | | | Rueck & Jore (2003) | |
| 216302 | Uyajitaya (Didiwala Dialect) | ɸɑtɛtɛ | | | Rueck & Jore (2003) | |
| 178951 | Uya | wakakai | | | Z'graggen (1980) | potato |
| 122826 | Utu | kuːvia | | | Z'graggen (1980) | potato |
| 192313 | Utarmbung | mormor- | | | Z'graggen (1980) | potato |
| 141924 | Usan | mobor | | | Z'graggen (1980) | sweet potato |
| 178949 | Urigina | kowkow | | | Z'graggen (1980) | potato |
| 200415 | Uri (Sintogoro Dialect) | fɨfɨɾɑ | | | Retsema et al. (2009) | |
| 200329 | Uri (Siara Dialect) | fʌfʌɾɑ | | | Retsema et al. (2009) | |
| 230817 | Ura | ɣʌlasum | | | SIL (1975) | |
| 228772 | Ura | mʌᶥmis | | | SIL (1971) | |
| 228265 | Ura | mʌimⁱs | | | SIL (1970) | |
