Extended Strong's Greek Lexicon (Abbott-Smith based)
then
Usage: εἶτα adv., denoting sequence; __1. of time; then, next: Mrk.8:25, Luk.8:12, Jhn.13:5 19:27 20:27, 1Ti.3:10, Jas.1:15; before genitive abs., Mrk.4:17; in enumerations, 1Co.15:5 15:7 15:24, 1Ti.2:13. __2. In argument; __(a) therefore, then, __(b) furthermore: Heb.12:9 (cf. εἶτεν).† (AS)