ἀναβαθμός, (οῦ, ὁ (βαθμός, and this from βαίνω); 1. an ascent. 2. a means of going up, a flight of steps, a stair: Act_21:35; Act_21:40. Examples from Greek writings in Lob. ad Phryn., p. 324f

ἀναβαθμός anabathmos 2x the act of ascending; means of ascent, steps, stairs, Act_21:35 ; Act_21:40

ἀνα -βαθμός , -οῦ , ὁ ( <ἀναβαίνω ), [in LXX for H4609 : 1Ki_10:19-20 , 2Ki_9:13 ; 2Ki_20:9 ff , 2Ch_9:18-19 , Isa_38:8 , Eze_40:6 ; Eze_40:49 ; ᾠδὴ τῶν ἀ ., tit. Psa_120:1-7 ; Psa_121:1-8 ; Psa_122:1-9 ; Psa_123:1-4 ; Psa_124:1-8 ; Psa_125:1-5 ; Psa_126:1-6 ; Psa_127:1-5 ; Psa_128:1-6 ; Psa_129:1-8 ; Psa_130:1-8 ; Psa_131:1-3 ; Psa_132:1-18 ; Psa_133:1-3 ; Psa_134:1-3 ) * ;] 1. a going up, an ascent (Pss, ll . c . ?). 2. a step ( LXX ); p1., a flight of stairs: Act_21:35 ; Act_21:40 . (On the formation -θμός , v . MM , VGT , s.v. )†

ἀναβαθμός [page 29] Syll 587 .308 (iv/B.C.) ἀναβαζμ [ο ]ύς ( i.e. -σμούς ), apparently parts of a τροχιλεία , on which see Dittenberger s note. For examples of ἀ . in late Greek, cf. Aelian vi. 61, xi. 31; Dion Cass. lxv. 21, lxviii. 5 (Lobeck Phryn. , p. 324). Rutherford ( NP , p. 372) adds the note of Moeris, βασμὸς Ἀττικῶς , βαθμὸς Ἑλληνικῶς , in confirmation of Phrynichus, who tells us that the θ is Ionic : for the relation of the -σμός and -θμός suffixes see Brugmann-Thumb .4 p. 218 f.

ἀνα-βαθμός, -οῦ, ὁ (ἀναβαίνω), [in LXX for מַעֲלָה: מַעֲלָה: 3Ki.10:19-20, 4Ki.9:13 20:9 ff, 2Ch.9:18-19, Isa.38:8, Eze.40:6, 49; ᾠδὴ τῶν ἀ., tit. Psa.120:1-7 121:1-8 122:1-9 123:1-4 124:1-8 125:1-5 126:1-6 127:1-5 128:1-6 129:1-8 130:1-8 131:1-3 132:1-18 133:1-3 134:1-3)* ;] __1. a going up, an ascent (Pss, ll. with ?). __2. a step (LXX); p1., a flight of stairs: Act.21:35, 40. (On the formation -θμός, see MM, VGT, see word)† (AS)