There are 18 8-letter words that start with 'lig'.
| ligament | ligating | ligation | ligative | 
| ligature | lightens | lighters | lightest | 
| lightful | lighting | lightish | ligneous | 
| lignites | lignitic | ligroine | ligroins | 
| ligulate | liguloid | ||
Note: These 18 8-letter words that start with 'lig' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with ligh, liga, lign, ligu, ligr, lige.
5-letter words start with 'lig' (3)