Greek word
hyakínthinos
ὑακίνθινος
What it means
hyacinthine or jacinthine, i.e. deep blue
"hyacinthine" or "jacinthine", i.e. deep blue
Where it comes from
from hyákinthos (ὑάκινθος)
How the King James translates it
Every place it appears 1
Revelation9:17