rĕ-sălūto, āvi, ātum, 1, v. a.,
to greet or salute in return , return a salutation , Cic. Phil. 2, 41, 106; Mart. 5, 21, 3; 5, 57, 2; 10, 70, 5; Petr. 44, 10; Sen. Tranq. 12; Vulg. Gen. 43, 27.
re-salūtō —, ātus, āre, to greet in return: neminem esse resalutatum, had his salute returned. ...
An Elementary Latin Dictionary