There are 21 words that start with 'caly'.
| calyx | calyces | calycle | 
| calypso | calyxes | calycate | 
| calyceal | calycine | calycles | 
| calyculi | calypsos | calypter | 
| calyptra | calycinal | calycular | 
| calyculus | calypsoes | calypters | 
| calyptras | calypsonian | calypsonians | 
Note: These 21 words that start with 'caly' are found from the USA & Canada version of the tournament Scrabble word list.