Active
To host or board, i.e., to regard as a stranger and show hospitality accordingly?
Acts 28:7: ...ὃς ἀναδεξάμενος ἡμᾶς τρεῖς ἡμέρας φιλοφρόνως ἐξένισεν.
...Who receiving us hosted (us) courteously three days.
But what does it mean here:
Acts 17:21: Ξενίζοντα γάρ τινα εἰσφέρεις εἰς τὰς ἀκοὰς ἡμῶν....
You are entering into our hearing something (that is) ξενίζω-ing.... [why τινα ξενίζοντα instead of τινα ξένον?]
Middle/Passive
To be hosted/boarded [by] (or host/board oneself [with]?):
Acts 10:16: οὗτος ξενίζεται παρά τινι Σίμωνι βυρσεῖ....
This one is hosted by one Simon (the) tanner....
To ???:
1 Peter 4:4: ἐν ᾧ ξενίζονται, μὴ συντρεχόντων ὑμῶν εἰς τὴν αὐτὴν τῆς ἀσωτίας ἀνάχυσιν, βλασφημοῦντες·They think it is strange [in which they are stranger-ized] that you don’t run with them into the same excess of riot, blaspheming. (WEB)
1 Peter 4:12: Ἀγαπητοί, μὴ ξενίζεσθε τῇ ἐν ὑμῖν πυρώσει πρὸς πειρασμὸν ὑμῖν γινομένῃ, ὡς ξένου ὑμῖν συμβαίνοντος·
Beloved, don’t be astonished at the fiery trial which has come upon you, to test you, as though a strange thing happened to you. (WEB)
Passive
To be hosted/boarded:
Acts 21:16: ...ἄγοντες παρ’ ᾧ ξενισθῶμεν, Μνάσωνί τινι Κυπρίῳ....
...bringing (the one) by whom we would be hosted, one Mnason of Cyprus....