OpenEtymology

sleepiness

UKˈsliːpi.nəsUSˈsliːpi.nəs

Meaning

1n

the state of feeling tired and wanting to sleep.

Structure

word structure
1
sleep
to rest in sleep
+
2
i
connective
+
3
ness
state or quality

Usage

the warmth of the room and the dull lecture contributed to her overwhelming sleepiness.

a common side effect of this medication is drowsiness and sleepiness.

he tried to fight off his sleepiness by drinking a strong cup of coffee.

Etymology

the word "sleepiness" is a layered english formation. its core, "sleep," originates from the old english slǣp, which itself descends from the proto-germanic slēpaz, a state of rest. the abstract noun-forming suffix "-ness," of germanic origin, was robustly productive in old english, attaching to adjectives and nouns to denote a state or condition. the modern word is a direct and logical compounding within english: the concrete state of "sleep" is combined with "-ness" to create the abstract quality of being disposed toward or characterized by that state. thus, "sleepiness" literally means "the state or quality of sleep."

Analysis

Structure
sleep (to rest in sleep) + i (connective) + ness (state or quality)=sleepto rest in sleep+iconnective+nessstate or quality

- sleep: from old english slǣp, slēp (sleep, slumber). functions as the core root noun. - i: a connective vowel used to join the root to the suffix, common in english word formation. - ness: from old english -nes, -nis, a suffix forming abstract nouns indicating a state, condition, or quality.

Sleepiness Etymology, Origin & Meaning | wordDNA