IPA: /æˈnæl.dʒə/
KK: /ænˈæl.dʒə/
A condition in which a person does not feel any pain.
After the surgery, the patient experienced analgia and felt no discomfort at all.
Analgesia is formed from "an-" (meaning without) and "algos" (meaning pain in Greek). The word describes a state of being without pain, often used in medical contexts to refer to pain relief.
Think of being 'without' ('an-') 'pain' ('algos') — that's what analgesia means.