Strong’s Greek
G1129 — gumnasia
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
γυμνασία
gumnasia — pronounced goom-nas-ee'-ah
from 1128; training, i.e. (figuratively) asceticism:--exercise. see GREEK for 1128
1 occurrence in the KJV.
1 Timothy 4:8
For bodily exercise profiteth little: but godliness is profitable unto all things, having promise of the life that now is, and of that which is to come.