This is the 4014th most frequent Swedish word.
mötts
"Have met" (past participle of "möta").
In this sentence, 'mötts' is used as the past participle form of the verb 'möta', in a passive or reciprocal construction indicating mutual action (having met each other).
Vi har mötts flera gånger tidigare.
We have met several times before.
Here, 'mötts' is used to describe a specific instance of meeting, showing action of two or more parties meeting each other.
De mötts vid stationen för att diskutera planen.
They met at the station to discuss the plan.
In this conditional clause, 'mötts' is used to emphasize the significance of the meeting as a defining moment affecting the course of actions.