Here's a breakdown:
* Dacryo- comes from the Greek word "dakryon," meaning "tear."
* Lacrimal is the Latin word for "tear."
Therefore, "dacryo" is used in medical terminology to refer to anything related to tears and the structures that produce and drain them, including:
* Dacryocystitis: Inflammation of the lacrimal sac.
* Dacryolith: A stone or calculus in the tear duct.
* Dacryocystography: An X-ray of the tear duct.
* Dacryadenitis: Inflammation of the lacrimal gland.