Strong's #3545: nomimos (pronounced nom-im'-oce)
adverb from a derivative of 3551; legitimately (specially, agreeably to the rules of the lists):--lawfully.
Thayer's Greek Lexicon:
́
nomimōs
1) lawfully, agreeable to the law, properly
Part of Speech: noun masculine
Relation: adverb from a derivative of G3551
Citing in TDNT: 4:1088, 646
Usage:
This word is used 2 times:
1 Timothy 1:8: "a man use it lawfully;"
2 Timothy 2:5: "crowned, except he strive lawfully."