Definition of "ages"

“He's been gone ages,” she said, and she went with little light steps to the door, opened it, and crossed the passage into his room.

1918 February (date written), Katherine Mansfield [pseudonym; Kathleen Mansfield Murry], “Je ne parle pas français”, in Bliss and Other Stories, London: Constable & Company, published 1920, page 108

Judith, aged 58, described her experience of seeking help for persistent back pain: "You don't actually see the consultant. You wait for ages and ages and ages and you come out feeling totally baffled really."

2012, Psychology for Nurses and the Caring Professions, UK: McGraw-Hill Education, page 250