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Definition of daylily
daylily
/ˈdeɪˌlɪl.i/
day · lil · y
Plural:daylilies
daylily Lexical Profile
CEFR
C1
Grade
7
Tier
2
Usage
Top 10k
daylily Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
A perennial Eurasian plant of the genus Hemerocallis, cultivated widely for its large, showy, lily-like flowers that characteristically bloom and wither within a single day.
Example
"We planted a border of vibrant orange daylilies that brightened the garden throughout the summer."
Word Nuance & Usage
Despite its common name and similar appearance, the daylily is not a true lily (genus Lilium); it belongs to a different family and grows from fleshy roots rather than true bulbs.
• Nearby Words
Word Origin & Etymology
Coined in the late 16th century by combining 'day' and 'lily', reflecting the fact that the individual blossoms of the plant typically open in the morning and wither by sunset, lasting only one day.
Usage Trend
Historical frequency of usage in published text.
180019102020
Data source: Google Books Ngram Viewer
Cite this Entry
Wordmom. (2026). Definition of Daylily. In Wordmom Dictionary. Retrieved Oct 14, 2026, from https://wordmom.com/dictionary/daylily