Strong’s Greek
G1876 — epanagkes
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἐπάναγκες
epanagkes — pronounced ep-an'-ang-kes
neuter of a presumed compound of 1909 and 318; (adverbially) on necessity, i.e. necessarily:--necessary. see GREEK for 1909 see GREEK for 318
1 occurrence in the KJV.
Acts 15:28
For it seemed good to the Holy Ghost, and to us, to lay upon you no greater burden than these necessary things;