Strong's Greek #2279
ἤχῳ

Englishman's Concordance (References)

ἤχῳ ēchō — 1 Occurrence

Hebrews 12:19 - N-DMS
GRK:καὶ σάλπιγγος ἤχῳ καὶ φωνῇ
NAS:and to the blast of a trumpet
KJV: And the sound of a trumpet, and
INT: and trumpet to sound and to voice