IPA: /əˈstrædəl/
KK: /əˈstrædəl/
In a position where something extends across or over both sides, often used to describe sitting or standing with legs apart.
The rider sat astraddle on the horse, ready to begin the race.
In a position where something is on both sides of an object, often with one leg on each side.
The rider sat astraddle the horse, ready to begin the race.
The word 'astraddle' is formed from 'a-' (meaning on or in) and 'straddle' (from Old English 'stradlan', meaning to spread or extend). The term describes the position of sitting or standing with legs spread apart, hence being on or in a straddling position.
Think of being 'on' ('a-') while 'spreading' ('straddle') your legs apart — that's what astraddle means.