Modern creation, possibly related to Teresa or Patrice
Trenice is a modern American name likely created in the mid-20th century. It is often viewed as a blend of the prefix 'Tre-' with the suffix '-nice', or as a phonetic variation of names like Denise or Patrice. Because it is a contemporary invention, it does not have a single traditional etymological root.
Less common today
Trenice isn't in the latest US Top 1000. It last peaked at #4,767 in 1990.
US births per 5-year period, 1990βpresent (SSA data).