kapcsolatával
Kapcsolatával is a Hungarian word. It is the instrumental case of the word "kapcsolat," which means "connection," "relationship," or "contact." The suffix "-val/-vel" indicates the instrumental case in Hungarian, meaning "with," "by," or "through." Therefore, "kapcsolatával" translates to "with his/her/its connection," "by his/her/its relationship," or "through his/her/its contact."
This grammatical form is used to express how an action is performed or how something is achieved