Strong's #3171: megalos (pronounced meg-al'-oce)
adverb from 3173; much:--greatly.
Thayer's Greek Lexicon:
́
megalōs
1) greatly
Part of Speech: adverb
Relation: from G3173
Usage:
This word is used 1 times:
Philippians 4:10: "I rejoiced in the Lord greatly, that now at the last your care"