LSJ
Adv. = καθά, Hdt. 9.82 codd., Arist. Pr. 891b34, IG 5(2).344.20 (Arc., iii BC), Wilcken Chr. 11 A 53 (ii BC), IG2². 1030.22 (i BC), al. ; even as, Ev. Jo. 15.12.
how, ὑπομιμνῄσκειν κ.… Aristeas 263, cf. Act. Ap. 15.12. of Time, as, when, ib. 7.17, LXX 2 Ma. 1.31, Aristeas 310. (Condemned by Phryn. 397, Moer. 212.)
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
TBESG
καθώς, (i.e. καθ᾽ ὡς), Hellenistic for καθά, which see, καθάπερ, καθό, καθότι (Mayser, 485; Eutherford, NPhr., 495; Bl., §78, 1),
according as, even as, just as, as: Luk.1:2 (see: καθά), 24:39, Jhn.5:23, Act.7:48, 1Co.8:2, Gal.3:6, al.; before οὕτως, Luk.11:30, Jhn.3:14, 2Co.1:5, Col.3:13, 1Jn.2:6, al.; before καί, Jhn.15:9, 1Co.15:49, 1Jn.2:18, al.; οὕτως . . . κ., Luk.24:24; id. with ellipsis of οὕτως, Mat.21:6, Mrk.16:7, Rom.1:13, al.; with other elliptical constructions, Jhn.6:58 17:21, 22 Act.15:8, 1Th.2:13, 1Ti.1:3, 1Jn.3:2, 3 12; καθὼς γέγραπται (Deiss., BS, 249), Mat.26:24, Mrk.9:13, Rom.1:17, al.; introducing subst. clause as object of verb (as in Heb.), Mat.21:6, Mrk.11:6, Luk.5:14, al.; after verbs of speaking, Act.15:14; of proportion and degree, Mrk.4:33, 1Co.12:11, 18 al.; of time (Neh.5:6, 2Ma.1:31), Act.7:17.
(AS)
Translators Brief lexicon of Extended Strongs for Greek based on Abbot-Smith, A Manual Greek Lexicon of the New Testament (1922) (=AS), with corrections and adapted by Tyndale Scholars