| 1 | Portuguese | breca | cramp; a disease that makes the hair of goats... |
| 2 | Frankish | breku | a breach, break; a break; crack; opening |
| 3 | English | breakfast | The first meal of the day, usually eaten in the... |
| 4 | Middle English | brekefast | breakfast |
| 5 | Middle English | fast | fast |
| 6 | Old English | fæste | — |
| 7 | Old English | -e | forming adverbs from adjectives; -ly |
| 8 | Old English | -en | mæġþ + API → mæġden; cocc + API → cycen, cicen;... |
| 9 | Old Norse | -inn | Used to create adjectives from nouns, meaning... |
| 10 | Proto-Norse | -īna- | — |
| 11 | Proto-Germanic | -īnaz | -en |
| 12 | Proto-Indo-European | -iHnos | Creates adjectives of materials |
| 13 | Proto-Indo-European | -no- | adjectival suffix |