Exact historical dictionary sense
Anniversary in Webster's 1913 dictionary
The 1913 record labels anniversary as adjective. Its source-bounded etymology and selected historical definition appear below.
[L. anniversarius; annus year + vertere, versum, to turn: cf. F. anniversaire.]
Cross-verified historical senseIn Webster's Revised Unabridged Dictionary (1913), "anniversary" is labeled adjective. Its etymology is recorded as: "[L. anniversarius; annus year + vertere, versum, to turn: cf. F. anniversaire.]" The selected historical definition says: "Returning with the year, at a stated time; annual; yearly; as, an anniversary feast."