unfurl
UK: /ʌnˈfɜːl/ | US: /ʌnˈfɜːrl/
vt. to open or spread out something that is rolled or folded
vi. to become unfolded or unrolled
The word "unfurl" combines the prefix "un-" (indicating reversal or negation, from Old English) with "furl" (meaning "to roll up," derived from Old French ferler, itself from Latin firmare "to make firm"). The logic is straightforward: "un-" reverses the action of "furl," creating the sense of unrolling or opening. Originally used in nautical contexts (e.g., unfurling sails), it later broadened to general usage.
The flag began to unfurl in the gentle breeze.
She unfurled the ancient scroll with care.
The flowers unfurled their petals at dawn.
The protesters unfurled a banner across the street.
As the storm passed, the clouds unfurled to reveal the sun.