There are 9 13-letter words that start with 'er'.
| erasabilities | ergastoplasms |
| ergonomically | erodibilities |
| erosivenesses | eroticization |
| erroneousness | erythroblasts |
| erythromycins | |
Note: These 9 13-letter words that start with 'er' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with ero, ere, erg, ery, err, era, eru, eri, ers, ern, erm, erb, erl, erv.
3-letter words start with 'er' (6)