English word forty comes from Proto-Germanic *fedwōr (Four.)
| Dictionary entry | Language | Definition |
|---|---|---|
| *fedwōr | Proto-Germanic (gem-pro) | Four. |
| *fedwōr tigiwiz | Proto-Germanic (gem-pro) | (with genitive) forty. |
| fēowertiġ | Old English (ang) | |
| forty | English (eng) | (cardinal) The cardinal number occurring after thirty-nine and before forty-one. (slang) A 40 ounce bottle of beer. |