Lexicon :: Strong's G2960 - kyriakos

κυριακός, κυριακῇ, κυριακόν, a Biblical and ecclesiastical word (cf. Winers Grammar, § 34, 3 and Sophocles Lexicon, under the word), of or belonging to the Lord;
1. equivalent to the genitive of the author τοῦ κυρίου, thus κυριακόν ἐιπνον, the supper instituted by the Lord, 1 Corinthians 11:20; λόγια κυριακα, the Lord's sayings, Papias quoted in Eus. h. e. 3, 39, 1.
2. relating to the Lord, ἡ κυριακῇ ἡμέρα, the day devoted to the Lord, sacred to the memory of Christ's resurrection, Revelation 1:10 (cf. 'κυριακῇ κυρίου, Teaching 14, 1 [ET] (where see Harnack Harris, p. 105 sq.); cf. B. D., under the word; Lightfoot Ignatius ad Magn. [ET], p. 129; Müller on the Epistle of Barnabas 15, 9 [ET]); γραφαί κυριακαι the writings concerning the Lord, i. e. the Gospels, Clement of Alexandria, others (Cf. Sophocles' Lexicon, under the word.)