The word used in Hebrews 6:4 for "impossible" is ἈδÏνατον.
Hebrews 11:6 - But without faith it is impossible to please Him, for he who comes to God must believe that He is, and that He is a rewarder of those who diligently seek Him.[NKJV]
The word "better" appears twelve times in Hebrews. By chapter and verse - 1:4; 6:9; 7:7, 19, 22; 8:6; 9:23; 10:34; 11:16, 35, 40; 12:24.
Hexa is a prefix derived from the Greek word for 6.
Delphi
Labda
Hexagon in greek means six
“Now faith is confidence in what we hope for and assurance about what we do not see.” (Hebrews 11:1 NIV)
Hecate
87 times. First occurance in Genesis 41:32 Last occurance in Hebrews 8:6
Faith in God is for salvation. For by grace are ye saved through faith; and that not of yourselves: it is the gift of God." Hebrews 11:6, "But without faith it is impossible to please Him, for he who comes to God must believe that He is, and that He is a rewarder of those who diligently seek Him." Hebrews 10:38, "Now the just shall live by faith."
Kenneth Samuel Wuest has written: 'Great Truths to Live by (Word Studies in the Greek New Testament, Book 6)' 'Ephesians and Colossians in the Greek New Testament for the English reader' 'Romans in the Greek New Testament for the English reader' -- subject(s): Bible, Commentaries 'The Pastoral Epistles' 'The New Testament' 'Mark in the Greek New Testament for the English reader' 'Great truths to live by from the Greek New Testament for the English reader' 'Studies in the vocabulary of the Greek New Testament for the English reader' -- subject(s): Bible, Biblical Greek language, Greek language, Language, style, Vocabulary 'Hebrews in the Greek New Testament for the English reader' -- subject(s): Bible, Commentaries
The Greek prefix for 6 is "hexa-".