Strong’s Greek
G2566 — kallion
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
καλός
kallion — pronounced kal-lee'-on
neuter of the (irregular) comparative of 2570; (adverbially) better than many:--very well. see GREEK for 2570
1 occurrence in the KJV.
Acts 25:10
Then said Paul, I stand at Caesar’s judgment seat, where I ought to be judged: to the Jews have I done no wrong, as thou very well knowest.