Strong’s Greek
G3812 — paidiothen
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
παιδιόθεν
paidiothen — pronounced pahee-dee-oth'-en
adverb (of source) from 3813; from infancy:--of a child. see GREEK for 3813
1 occurrence in the KJV.
Mark 9:21
And he asked his father, How long is it ago since this came unto him? And he said, Of a child.