echo (Greek #2192)
(used in certain tenses only) a primary verb; to hold (used in very various applications, literally or figuratively, direct or remote; such as possession; ability, contiuity, relation, or condition)
KJV usage: be (able, X hold, possessed with), accompany, + begin to amend, can(+ -not), X conceive, count, diseased, do + eat, + enjoy, + fear, following, have, hold, keep, + lack, + go to law, lie, + must needs, + of necessity, + need, next, + recover, + reign, + rest, + return, X sick, take for, + tremble, + uncircumcised, use.
Pronounce: ekh'-o
Origin: σχέω (skheh'-o)
kardia (Greek #2588)
the heart, i.e. (figuratively) the thoughts or feelings (mind); also (by analogy) the middle
KJV usage: (+ broken-)heart(-ed).
Pronounce: kar-dee'-ah
Origin: prolonged from a primary κάρ (Latin cor, "heart")