Strong's #3176: megistos (pronounced meg'-is-tos)
superlative of 3173; greatest or very great:--exceeding great.
Thayer's Greek Lexicon:
́
megistos
1) greatest, very great
Part of Speech: adjective
Relation: superlative of G3173
Usage:
This word is used 1 times:
2 Peter 1:4: "Whereby are given unto us exceeding great and precious promises:"