anniversary

UK: ˌænɪˈvɜːsəri | US: ˌænɪˈvɜːrsəri

Definition
  1. n. the yearly recurrence of the date of a past event, especially a significant one

  2. n. a celebration or ceremony marking such a date

Structure
ann <year>vers <turn>ary <noun suffix>
Etymology

anniversary = ann<year> + vers<turn> + ary<noun suffix>

  • ann (from Latin annus, meaning "year")
  • vers (from Latin vertere, meaning "to turn")
  • ary (a suffix forming nouns, often indicating "related to" or "pertaining to")

Etymology Origin:
The word anniversary originates from Latin anniversarius, combining annus (year) and vertere (to turn). The concept metaphorically represents the "turning of the year," marking the completion of another cycle since a notable event. This logical progression—from the literal "yearly turn" to the modern sense of commemoration—reflects how Latin roots evolved into abstract English terms.

Examples
  1. They celebrated their 50th wedding anniversary with a grand party.

  2. The company marked its 10th anniversary by launching a new product line.

  3. Every year, we observe the anniversary of our founder’s birth.

  4. The museum’s anniversary exhibition attracted thousands of visitors.

  5. She forgot their dating anniversary, which upset her partner.