Final answer:
The suffix -algia is a medical term that signifies pain, as in 'neuralgia' for nerve pain and 'myalgia' for muscle pain.
Step-by-step explanation:
The suffix -algia denotes pain in medical terminology. When attached to the end of a word, it indicates a painful condition related to the part of the body referenced by the word's root. For instance, 'neuralgia' refers to nerve pain, while 'myalgia' indicates muscle pain.