There are 14 words that start with 'asth'.
asthma | astheny |
asthmas | asthenia |
asthenic | asthenias |
asthenics | asthenies |
asthmatic | asthmatics |
asthenosphere | asthmatically |
asthenospheres | asthenospheric |
Note: These 14 words that start with 'asth' are found from the USA & Canada version of the tournament Scrabble word list.