Extended Strong's Greek Lexicon (Abbott-Smith based)
devoutly
Usage: ὁσίως (ὅσιος), adv., [in LXX: 3Ki.8:61, Wis.6:10 * ;] piously, holily: ὁ. καὶ δικαίως κ. ἀμέμπτως (on the distinction here between these synonyms, see M, Th., 24 f.), 1Th.2:10.† (AS)