| Language | Lexeme | Native script | Phonetic | Phonemic | Notes | |
|---|---|---|---|---|---|---|
| 140 | Catalan | foc | fɔk | fɔk | ||
| 135 | French | feu | fø | fø | ||
| 127 | Italian | fuoco | ˈfwɔːko | ˈfwɔko | ||
| 129 | Ladin | fuech | ˈfue̯k | |||
| 143 | Portuguese | fogo | ˈfoɡu | ˈfoɡu | ||
| 132 | Sardinian: Logudoro | focu | ˈfoːɣu | ˈfoːɣu | ||
| 142 | Spanish | fuego | ˈfweɣo | ˈfweɡo | ||
| 136 | Walloon | feû | føː | føː | ||
| 128 | Friulian | fûc | ˈfuːk | ˈfuːk | Deriv. fogon. | |
| 123 | Romanian | foc | fok | fok | ||
| 125 | Dalmatian: Vegliote | fuk | fuk | |||
| 126 | Neapolitan | fuoco | ˈfwokə | ˈfwokə | ||
| 131 | Sardinian: Nuoro | focu | ˈfoːɣu | ˈfoːɣu | ||
| 133 | Old French | feu | ||||
| 134 | Anglo-Norman | feu | ||||
| 138 | Franco-Provençal | foua | ˈfwa | ˈfua | masculine noun | |
| 141 | Old Spanish | fuego | ˈfweɡo | |||
| 137 | Old Occitan | fuec | foc: also for hearth and not primarily fire | |||
| 124 | Megleno-Romanian | foc | ||||
| 139 | Old Catalan | foc | fɔk | fɔk | ||
| 144 | Portuguese: Brazilian | fogo | ||||
| 130 | Milanese | föch | fœk |
S.v. Lat. focus, -ī 'foyer (domestique, demeure des dieux Lares, Penates)'.
S.v. 3400 Lat. focus 'Feuer'.
S.v. Lat. focus 'hearth, fireplace'. The etymology of focus is disputed and there are no straightforward PIE solutions.