6.3.1.2 (p)t-r. The accent indicates that this group belong to the base t-r, not to p-t (6.4.2) |
| Anc.Greek | pterón | wing, feather |
| Ital.: Otr. | attero | wing |
| Zend | apterjat | bird |
| Anc.Greek | ptilon | downy feather |
| Anc.Greek | pteris | fern |
| Mod.Greek | fterà | feather |
| Mod.Greek | fteráki | downy feather |
| Mod.Greek | xepterízo | to pluck |
| Mod.Greek | áfteros | wingless |
| Mod.Greek | aftérotos | without feathers |
| Mod.Greek | ftroûga | wing |
| Ital.: Bova | afteriga | wing |