There are 15 words that start with 'ritu'.
| ritual | rituals |
| ritually | ritualism |
| ritualist | ritualize |
| ritualisms | ritualists |
| ritualized | ritualizes |
| ritualistic | ritualizing |
| ritualization | ritualizations |
| ritualistically | |
Note: These 15 words that start with 'ritu' are found from the USA & Canada version of the tournament Scrabble word list.