prone
UK: /prəʊn/ | US: /proʊn/
adj. lying flat or face downward
adj. having a natural tendency or inclination
The word "prone" originates from the Latin pronus, meaning "bent forward" or "inclined." It combines pro- (forward) with an adjectival suffix, reflecting a physical or metaphorical leaning. Over time, it evolved in Middle English to describe both physical posture (lying face down) and inherent tendencies (e.g., "prone to errors"). The root pro- persists in related words like "prostrate" (fully stretched out) and "inclination."
She lay prone on the grass, soaking up the sun.
The study found that teenagers are prone to taking risks.
The soldier was ordered to stay prone during the ambush.
This material is prone to cracking under pressure.
He’s always been prone to exaggerating his achievements.