Merlin's-grass

noun

Mer·​lin's-grass

ˈmərlə̇nz+ˌ-

plural Merlin's-grasses

: a common European quillwort (Isoetes lacustris)

Word History

Etymology

probably after Merlin, legendary 5th century Welsh wizard

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