| 206758 | Proto-South-Adelbert | *kum(b)u | | | Ross (2014) | cloud |
| 90840 | Mesem | kumbu | cloud | | McElhanon (1967) | cloud |
| 48927 | Aeka | kumbo | cloud | | Smallhorn (2011) | |
| 192957 | Sileibi | kumbiŋgɨpa | | | Z'graggen (1980) | cloud |
| 233709 | Ama | 'ku:mãki'wa:u | | | SIL (1974) | |
| 198089 | Ama | kumaki | | | Conrad and Dye (1975) | |
| 213708 | Som | kuan | | | SIL (1968) | |
| 219780 | Awyu, Central (Nohon Dialect) | ɑˈku | | | Kriens & Lebold (2010) | |
| 30103 | Viid | ku | | | Voorhoeve (1971) | |
| 245747 | Tabriak | krambri | | | SIL (1990) | |
| 201833 | Proto-Awyu-Dumut | *koüt | | | Voorhoeve (2000) | |
| 90847 | Somba-Siawari (Burum Dialect) | kousu | cloud | | McElhanon (1967) | cloud |
| 90842 | Somba-Siawari (Mindik Dialect) | kousu | cloud | | McElhanon (1967) | cloud |
| 216341 | Obokuitai | koɾub̚ | | | Clouse (1997) | |
| 216342 | Eritai | koɾu | | | Clouse (1997) | |
| 31852 | Bauwaki | kosu | | | SIL (1973) | |
| 90850 | Tobo | kosu | cloud | | McElhanon (1967) | cloud |
| 246470 | Chambri | korkas | many clouds | | SIL (1975) | |
| 72517 | Kamano | koríempa'na | | | Scott (1978) | |
| 246456 | Chambri | kor | one cloud | | SIL (1975) | |
| 163736 | Kyaka | kopa | | | Davies and Comrie (1985) | cloud |
| 163738 | Enga (Lapalama Dialect) | kopa | | | Davies and Comrie (1985) | cloud |
| 90844 | Borong | koosuk | cloud | | McElhanon (1967) | cloud |
| 30431 | Tofanma | koo | | | Voorhoeve (1971) | |
| 72510 | Gadsup | konama | | | Scott (1978) | |
| 16708 | Kaluli | kɔlɔk | | | Shaw (1986) | |
| 180109 | Anjam | kola | | | Z'graggen (1980) | cloud |
| 3266 | Kaluli | kol | (?) | | Franklin and Voorhoeve (1973) | |
| 1709 | Kamasa | kogwa | | | Lloyd (1973) | |
| 35286 | Alor (Kalabahi Dialect) | k'ɔfα | | | Stokhof (1975) | |
| 207798 | Proto-Rai-Coast | *kob(i)u | | | Ross (2014) | cloud |
| 209831 | Proto-Croisilles | *kob(i)u | | | Ross (2014) | cloud |
| 180102 | Danaru | kobiu | | | Z'graggen (1980) | cloud |
| 180101 | Urigina | kobiu | | | Z'graggen (1980) | cloud |
| 5603 | Folopa (Sopese Dialect) | koa: | | | Macdonald (1973) | |
| 4207 | Samberigi | koa | | | Franklin and Voorhoeve (1973) | |
| 180092 | Lemio | koᵬ | | | Z'graggen (1980) | cloud |
| 24230 | Yali, Angguruk | kɩna [xɩna] | | | Bromley (1967) | |
| 192967 | Apali | kʌ:mu | | | Z'graggen (1980) | cloud |
| 239164 | Tok Pisin | klaut | cloud | | Abbott (1985) | |
| 143066 | Maia (Saki Dialect) | kiwa:mu | | | Z'graggen (1980) | cloud |
| 72509 | Fore | kisana | | | Scott (1978) | |
| 31990 | Huli | kínu | | | SIL (1992) | |
| 18470 | Aimele | kilini | | | Shaw (1986) | |
| 16308 | Odoodee (Hesif Dialect) | kilibɔ | | | Shaw (1986) | |
| 31171 | Zimakani | ḳɑi̯a saka | | | Voorhoeve (1970) | |
| 27734 | Zimakani (Begua Dialect) | ḳɑi̯a saka | | | Voorhoeve (1970) | |
| 90838 | Ono | kezoŋ | cloud | | McElhanon (1967) | cloud |
| 216344 | Kaure | kɛtɛ | | | Clouse (1997) | |
| 29387 | Kaure | kete | | | Voorhoeve (1971) | |
