There are 9 12-letter words that start with 'mor'.
| moralization | morbidnesses | morosenesses |
| morphallaxes | morphallaxis | morphologies |
| morphologist | morphometric | mortarboards |
Note: These 9 12-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)