Russian word связываться comes from Russian -ся, Russian свя́зывать

Detailed word origin of связываться

Dictionary entry	Language	Definition
-ся	Russian (rus)	Reflexive suffix appended to finite verbs and infinitives to make a reflexive, reciprocal, intransitive or passive verb.
свя́зывать	Russian (rus)
связываться	Russian (rus)	(colloquial) to get involved (с with). To communicate, to get in contact (с with).

Words with the same origin as связываться