Mark 14:68ἐπίσταμαι
But he denied it. “I do not know or even understand what you are talking about,” he said. Then he went out to the gateway, and the rooster crowed.
Acts 10:28ἐπίστασθε
He said to them, “You know how unlawful it is for a Jew to associate with a foreigner or visit him. But God has shown me that I should not call any man impure or unclean.
1 Timothy 6:4ἐπιστάμενος
he is conceited and understands nothing. Instead, he has an unhealthy interest in controversies and disputes about words, out of which come envy, strife, abusive talk, evil suspicions,
Hebrews 11:8ἐπιστάμενος
By faith Abraham, when called to go to a place he would later receive as his inheritance, obeyed and went, without knowing where he was going.
James 4:14ἐπίστασθε
You do not even know what will happen tomorrow! What is your life? You are a mist that appears for a little while and then vanishes.
Jude 1:10ἐπίστανται
These men, however, slander what they do not understand, and like irrational animals, they will be destroyed by the things they do instinctively.

Abbott-Smith

ἐπίσταμαι
(prob. an old mid, of ἐφίστημι, which see), [in LXX chiefly for יָדַע ;]
to know, know of, understand: with accusative of person(s), Act.19:15; with ptcp., Act.24:10; with accusative of thing(s), Mrk.14:68, Act.18:25, 1Ti.6:4, Jas.4:14, Ju 10; before περί, Act.26:26; ὅτι, Act.15:7 19:25 22:19; ὡς, Act.10:28; πῶς, Act.20:18; ποῦ, Heb.11:8.†
SYN: γινώσκω (which see), οἶδα
(AS)

Sources: Abbott-Smith’s Manual Greek Lexicon of the New Testament (1922, public domain) and glosses from STEPBible TBESG (CC BY 4.0); STEPBible TAGNT (Greek New Testament, CC BY 4.0); the Berean Standard Bible (public domain). Reformatted by Word Study, wording unchanged. All sources and licenses.