FORTE MAIN

main force; sheer strength or force. In French, forte main means, literally, "strong hand." —9th ACC Volume 1 Approved Glossary

main force; sheer strength or force. In French, forte main means, literally, "strong hand."main force; sheer strength or force.strength or force. In French, forte means "strong" and main means "hand."literally strong hand, from the French terms forte (strong) and main (hand). This is possibly a variation of the term strong-arm, meaning using or involving physical force, strength or power.