From hiko (hikano or hikneomai, akin to heko) (to arrive); competent (as if coming in season), i.e. Ample (in amount) or fit (in character) -- able, + content, enough, good, great, large, long (while), many, meet, much, security, sore, sufficient, worthy.
see GREEK heko
a. of number and quantity; with nouns, many enough, or enough with a genitive: ὄχλος ἱκανός, a great multitude (A. V. often much people), Mark 10:46; Luke 7:12; Acts 11:24, 26; Acts 19:26; λαός, Acts 5:37 R G; κλαυθμός, Acts 20:37; ἀργύρια ἱκανά (A. V. large money, cf. the colloquial, 'money enough'), Matthew 28:12; λαμπάδες, Acts 20:8; λόγοι, Luke 23:9; φῶς ἱκανόν, a considerable light (A. V. a great light), Acts 22:6. of time: ἱκανῷ χρόνῳ (cf. Winers Grammar, § 31, 9; Buttmann, § 133, 26) for a long time (Luke 8:27 T Tr text WH); Acts 8:11; also ἱκανόν χρόνον, Acts 14:3; and plural Luke 20:9; ἐξ ἱκανοῦ, of a long time, now for a long time, Luke 23:8 R G; also ἐκ χρόνων, ἱκανῶν, Luke 8:27 R G L Tr marginal reading; Luke 23:8 L T Tr WH; (ἀπό ἱκανῶν ἐτῶν, these many years, Romans 15:23 WH Tr text); ἱκανοῦ ... χρόνου διαγενομένου, much time having elapsed, Acts 27:9; ἐφ' ἱκανόν for a long while, Acts 20:11 (2 Macc. 8:25; Diodorus 13, 100; Palaeph. 28); ἡμέραι (cf. Lightfoot on Galatians, p. 89 n.), Acts 9:23, 43; Acts 18:18; Acts 27:7. absolutely, ἱκανοί, many, a considerable number: Luke 7:11 (R G L brackets T Tr marginal reading brackets); Acts 12:12; Acts 14:21; Acts 19:19; 1 Corinthians 11:30 (1 Macc. 13:49, etc.). ἱκανόν ἐστιν, it is enough, equivalent to enough has been said on this subject, Luke 22:38 (for Jesus, saddened at the paltry ideas of the disciples, breaks off in this way the conversation; the Jews, when a companion uttered anything absurd, were accustomed to use the phrase לָכֶם רַב (A. V. let it suffice thee, etc.), as in Deuteronomy 3:26, where the Sept. ἱκανούσθω) ἱκανόν τῷ τοιούτῳ ἡ ἐπιτιμία αὕτη, SC. ἐστι, sufficient ... is this punishment, 2 Corinthians 2:6; after the Latin idiom satisfacere alicui, τό ἱκανόν ποιεῖν τίνι, to take away from one every ground of complaint (A. V. to content), Mark 15:15 (Polybius 32, 7, 13; Appendix, Puff., p. 68, Toll. edition (sec. 74, i., p. 402 edition Schweig.); (Diogenes Laërtius 4, 50); τό ἱκανο λαμβάνω (Latinsatisaccipio), to take security (either by accepting sponsors, or by a deposit of money until the case had been decided), Acts 17:9.
b. sufficient in ability, i. e. meet, fit (German tüchtig (A. V. worthy, able, etc.)): πρός τί, for something, 2 Corinthians 2:16; followed by an infinitive (Buttmann, 260 (223f)), Matthew 3:11; Mark 1:7; Luke 3:16; 1 Corinthians 15:9; 2 Corinthians 3:5; 2 Timothy 2:2; followed by ἵνα with subjunctive (Buttmann, 240 (207); cf. Winer's Grammar, 335 (314)): Matthew 8:8; Luke 7:6.