| 237128 | Proto-Ottilien | *(ra)par | | | Foley (2005) | |
| 211509 | Proto-Oceanic | *raun | | | Blust (1993) | |
| 236157 | Proto-Lower-Sepik | *nɨmpramp | | | Foley (2005) | |
| 235487 | Proto-Lower-Sepik | *nɨmpramp | | | Foley (2005) | |
| 7811 | Proto-Lower-Sepik | *nɨmpramp | | | Foley (1986) | |
| 96379 | Proto-Kwalean | *ro(va) | | | Ross (2014) | leaf |
| 14881 | Proto-Koiarian | *fana | | | Dutton (2010) | |
| 51483 | Proto-Binandere | *gi | | | Smallhorn (2011) | |
| 163864 | Pinai-Hagahai (Wakadadap Dialect) | mənᵊhana | | | Davies and Comrie (1985) | leaf |
| 163863 | Pinai-Hagahai (Wakadadap Dialect) | mə'nana | | | Davies and Comrie (1985) | leaf |
| 163862 | Pinai-Hagahai (Nangenuwetan Dialect) | mu'nana | | | Davies and Comrie (1985) | leaf |
| 163849 | Pinai-Hagahai (Aramo Dialect) | mənɐ ha'na | | | Davies and Comrie (1985) | leaf |
| 5252 | Pawaia | i̧ nesi | | | Macdonald (1973) | |
| 81 | Pawaia | si | | | Trefry (1969) | |
| 2172 | Pare | i̧ use | | | Shaw (1973) | |
| 156035 | Pare | osɛ | | | McElhanon and Voorhoeve (1970) | leaf |
| 16071 | Pare | ĩ use | | | Shaw (1986) | |
| 197341 | Papi | sʌnipa | | | Conrad and Dye (1975) | |
| 232996 | Owiniga | iba | | | SIL (1972) | |
| 198513 | Owiniga | iba | | | Conrad and Dye (1975) | |
| 246276 | Owiniga | ʔi'pah | | | SIL (1963) | |
| 217373 | Orya | teala | | | Clouse (1997) | |
| 4738 | Orokolo | korokoro | | | Brown (1973) | |
| 4054 | Orokolo (Kaipi Dialect) | tolotolo | | | Brown (1973) | |
| 51503 | Orokaiva (Sose Dialect) | gigi | leaf, flower | | Smallhorn (2011) | |
| 51505 | Orokaiva (Sairope Dialect) | gigi | leaf | | Smallhorn (2011) | |
| 28376 | Orokaiva (Sairope Dialect) | gigi | | | Wilson (1969) | |
| 51502 | Orokaiva (Kendata Dialect) | [i] ɣiɣi | leaf | | Smallhorn (2011) | |
| 28236 | Orokaiva (Kendata Dialect) | i ǥiǥi | | | Wilson (1969) | |
| 51501 | Orokaiva (Jegarata-Kakendetta Dialect) | gigi | leaf | | Smallhorn (2011) | |
| 28201 | Orokaiva (Jegarata-Kakendetta Dialect) | gigi | | | Wilson (1969) | |
| 51500 | Orokaiva (Dobuduru Dialect) | [ji i]ki | leaf | | Smallhorn (2011) | |
| 28153 | Orokaiva (Dobuduru Dialect) | zi iki | | | Wilson (1969) | |
| 4634 | Opao | korakoro | | | Brown (1973) | |
| 156093 | Ono (Kip Dialect) | met | | | McElhanon and Voorhoeve (1970) | leaf |
| 91342 | Ono | meti- | (its) leaf | | McElhanon (1967) | (its) leaf |
| 6066 | Onabasulu | walu | | | Shaw (1973) | |
| 16171 | Onabasulu | iwalu | | | Shaw (1986) | |
| 14885 | Ömie | han-e | leaf | | Dutton (2010) | |
| 3741 | Omati | ibolo | | | Franklin (1973) | |
| 75420 | Oirata | ɛtɛ'ʔasa | | | Taber (1993) | |
| 16271 | Odoodee (Kalamo Dialect) | du | | | Shaw (1986) | |
| 16371 | Odoodee (Hesif Dialect) | hɔsugudu | | | Shaw (1986) | |
| 197429 | Odiai | iri | | | Conrad and Dye (1975) | |
| 217367 | Obokuitai | akɾud̚ | | | Clouse (1997) | |
| 156087 | Numanggang | sap | | | McElhanon and Voorhoeve (1970) | leaf |
| 156062 | Nukna (Hamelengan Dialect) | ilʌŋ | | | McElhanon and Voorhoeve (1970) | leaf |
| 156061 | Nukna | iɬoŋ | | | McElhanon and Voorhoeve (1970) | leaf |
| 156090 | Nuk | endzi | | | McElhanon and Voorhoeve (1970) | leaf |
| 1032 | Northeast Kiwai (Urama Dialect) | paha | | | Wurm (1973) | |
