There are 5 4-letter words that start with 'mor'.
| mora | more | morn | mors | mort | 
Note: These 5 4-letter words that start with 'mor' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with mort, morp, mora, moro, more, mord, morg, morb, morr, mors, moru, mori, morn, morc.
4-letter words start with 'mor' (5)