Reply To: Pshat in the mishneh "Knei Lcha Chaver?"

Kinyan actually means to acquire, not to buy/purchase. The ‘proof’, although not a proof is the situation that arises on Shabbos/Yom Tov where let’s say Reuven comes to Shimon’s house, and Shimon gives Reuven a shirt to wear back home, as Reuven’s first shirt is ruined from lunch (first shirt now has no value). Although we don’t initially make kinyanim on Shabbos, the acquisition is nevertheless valid.