fiance

UK: fiˈɒnseɪ | US: ˌfiːɑːnˈseɪ

Definition
  1. n. a man engaged to be married

Structure
fianc <to trust (from Old French "fier")>e <masculine suffix>
Etymology

The word "fiance" originates from Old French "fiancer," meaning "to promise or trust," derived from the Latin "fidere" (to trust). The suffix "-e" marks it as masculine in French. Over time, it specifically came to denote a man betrothed for marriage, retaining its core idea of a trusted promise.

Examples
  1. She introduced her fiance at the family gathering.

  2. His fiance surprised him with a wedding planning book.

  3. The couple celebrated their engagement, with her fiance giving a heartfelt speech.

  4. As a fiance, he took on more responsibilities in their shared home.

  5. Her fiance proposed during their trip to Paris.