backfriend

noun

back·​friend

archaic

: a seeming friend who is secretly an enemy

Word History

Etymology

perhaps from back entry 3 + friend

First Known Use

15th century, in the meaning defined above

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now