There are 21 words that start with 'vein'.
vein | veins | veiny |
veinal | veined | veiner |
veiners | veinier | veining |
veinlet | veinule | veiniest |
veinings | veinless | veinlets |
veinlike | veinules | veinulet |
veinstone | veinulets | veinstones |
Note: These 21 words that start with 'vein' are found from the USA & Canada version of the tournament Scrabble word list.