There are 18 words that end with 'rtly'.
| curtly | portly | partly |
| pertly | tartly | alertly |
| courtly | inertly | peartly |
| shortly | smartly | overtly |
| covertly | expertly | thwartly |
| malapertly | inexpertly | stalwartly |
Note: These 18 words that end with 'rtly' are found from the USA & Canada version of the tournament Scrabble word list.