grandpaternal

adjective

: grandfatherly

taught, in deference to grandpaternal feelings, to address his grandfather as "Mr. Wendell"

—M. A. D. Howe

Word History

Etymology

grand + paternal

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