Question

which word part means \old age\? labrinth/o presby/o myring/o phak/o

Explanation:

• labrinth/o: It is related to the labyrinth (inner ear structure), not "old age".
• presby/o: This word part is associated with old age. For example, "presbyopia" is a condition related to aging eyesight.
• myring/o: Refers to the tympanic membrane (eardrum), not relevant to "old age".
• phak/o: Pertains to the lens (as in the eye lens), not "old age".

Answer:

presby/o