Strong’s Greek
G174 — akanthinos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἀκάνθινος
akanthinos — pronounced ak-an'-thee-nos
from 173; thorny:--of thorns. see GREEK for 173
2 occurrences in the KJV.
Mark 15:17
And they clothed him with purple, and platted a crown of thorns, and put it about his head,
John 19:5
Then came Jesus forth, wearing the crown of thorns, and the purple robe. And Pilate saith unto them, Behold the man!