From ek; the exterior; figuratively (as a preposition) aside from, besides -- but, except(-ed), other than, out of, outside, unless, without.
see GREEK ek
a. s τό ἐκτός, the outside, exterior, with possessive the genitive, Matthew 23:26 (cf. τό ἔξωθεν τοῦ ποτηρίου, 25). On the pleonastic phrase ἐκτός εἰ μή, see εἰ, III. 8 d. b. It has the force of a preposition (cf. Winers Grammar, § 54, 6), and is followed by the genitive (so even in Homer); αα. outside of: ἐκτός τοῦ σώματος out of the body, i. e. freed from it, 2 Corinthians 12:2f. (in 2 Corinthians 12:3 L T Tr WH read χωρίς for ἐκτός); εἶναι ἐκτός τοῦ σώματος (A. V. without the body, i. e.), does not pertain to the body, 1 Corinthians 6:18. β. beyond, besides, except: Acts 26:22 (where the construction is οὐδέν λέγων ἐκτός τούτων, ἅτε οἱ ... ἐλάλησαν etc. (cf. Buttmann, 287 (246); Winer's Grammar, 158f (149f)); 1 Corinthians 15:27. (the Sept. for לְבַד followed by מִן, Judges 8:26; מִלְּבַד, 1 Kings 10:13; 2 Chronicles 9:12; 2 Chronicles 17:19.)