the.com/emergency

The moment plans become suggestions.

means A sudden situation demanding immediate action because something has gone seriously wrong.

from From Latin 'emergere' — to rise up out of, to surface — the same root that gives us 'emerge.' An emergency is literally something that has emerged: popped up out of the calm water of normal life, unignorable, demanding attention right now. The word entered English in the 1600s basically meaning 'an unforeseen occurrence,' and only later narrowed to the urgent, alarm-bells sense we use today.

word age
entered English meaning crisis only in 1600s
shared root
emergency and emerge are etymological siblings
911 origin
US emergency number chosen for easy rotary dialing
legal twist
declared emergencies can expand government power temporarily
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