| Bielor. | uç | domestic duck, 40 |
| Lith. | utë | domestic duck, 40 |
| Ukr. | utka | domestic duck, 40 |
| Sbc. | utva | domestic duck, 40. The presence of this name in Lith. as well as the occidental extension of the root exclude a Turkish origin, which has been proposed for the Slavic names |
| Bulg. | utva | Tawny Owl, 239 |
| Sbc. | ut, utina, utka | Long-eared Owl, 248 |
| Lettish | utelis | Black-headed Gull, 90 (= prob. coll. for gulls, 81-84) |
| Roman. | uti-uti | call to ducks, 40 |
| Roman. | ûture | Tawny Owl, 239 |
| Esp. | utra | Tawny Owl, 239 |
| Hitt. | uttar | word |
| Engl. | utter | to give forth sounds, words, etc.. Belongs to this phonic root rather than to the adverb outer |
| Anc.Greek | otobéo | to make resound |
| Anc.Greek | ototyzo | to lament |
| Engl. | oat-fowl | Brambling, 433 |
| Roman. | oitâ | Chaffinch, 432; Nuthatch, 401 |
| Basque | aots | sound, voice |
| Basque | aotxigorri | Black-headed Gull, 90 |
| Basque | otz | noise, fame |
| Basque | ospe | (ots > ost > osp) fame |
| Esp. | hospajos | cri pour effaroucher, éloigner |
| Basque | otserroi | Carrion Crow, 280 |
| Basque | ots | voice, call, cry |
| Basque | otx | exclamation of pain |
| Engl. | ouch | id. |