Original Word: ἐπιγινώσκω
Part of Speech: Verb
Transliteration: epiginóskó
Phonetic Spelling: (ep-ig-in-oce’-ko)
Short Definition: I come to know, discern, recognize
Definition: I come to know by directing my attention to him or it, I perceive, discern, recognize; aor: I found out.

1921 epiginṓskō (from 1909 /epí, “on, fitting” which intensifies 1097 /ginṓskō, “know through personal relationship”) – properly, apt, experiential knowing, through direct relationship. This knowing builds on (epi, “upon“) the verbal idea and hence is defined by the individual context.

Example: 1 Cor 13:12: “For now we see in a mirror dimly, but then face to face; now I know in part, but then I will aptly-experientially know (1921 /epiginṓskō) to the extent (2531 /kathṓs) I also have been aptly-experientially known (1921 /epiginṓskō).”

[Believers then will personally (aptly) know the Lord throughout the aeons of eternity – in keeping with the extent (Gk kathōs) they allowed Him to personally (aptly) know them here on earth.

“Been known” is the passive form of 1921 /epiginṓskō (aorist indicative, epegnōsthēn), indicating that the level we will experientially know (enjoy) God in eternity will “match” the level we were known by Him in this life (see also P. Hughs at 2 Cor 1:13).

1097 (ginōskō) is used once in this verse, and 1921 (epiginṓskō) twice. Both uses of 1921 (epiginṓskō) work in conjunction with the Greek adverb, 2531 /kathṓs (“to the extent of).” The “appropriate (apt)” knowledge matches the envisioned “contact” (note the root, 1097 /ginṓskō, “first-hand knowing”).]

acknowledge, perceive.

From epi and ginosko; to know upon some mark, i.e. Recognize; by implication, to become fully acquainted with, to acknowledge — (ac-, have, take)know(-ledge, well), perceive.

see GREEK epi

see GREEK ginosko

Original Word: ἐπίγνωσις, εως, ἡ
Part of Speech: Noun, Feminine
Transliteration: epignósis
Phonetic Spelling: (ep-ig’-no-sis)
Short Definition: knowledge, discernment, recognition
Definition: knowledge of a particular point (directed towards a particular object); perception, discernment, recognition, intuition.

Cognate: 1922 epígnōsis (from 1909 /epí, “on, fitting” which intensifies 1108 /gnṓsis, “knowledge gained through first-hand relationship”) – properly, “contact-knowledge” that is appropriate (“apt, fitting”) to first-hand, experiential knowing. This is defined by the individual context. See 1921 (epignōskō).

This should all pertain to what is spiritually unseen!