There are 16 words that start with 'regra'.
regrade | regraft | regrant |
regrate | regraded | regrades |
regrafts | regrants | regrated |
regrates | regrading | regrafted |
regranted | regrating | regrafting |
regranting | ||
Note: These 16 words that start with 'regra' are found from the USA & Canada version of the tournament Scrabble word list.