A more thorough explanation:

ligare

Ligare means to tie or bind something together. It can also mean to enter into a treaty or league with someone.

• She used a rope to ligare the boxes together so they wouldn't fall off the truck.
• The two countries decided to ligare and work together to solve the problem.

The first example shows how ligare can be used to physically tie or bind something together. The second example shows how ligare can be used to describe countries coming together and forming an agreement or treaty.