First recorded in 1590–1600 in the sense of “a whole.”
The astronomical sense highlighted here was first recorded in the 1840s.
Comes from the noun total, which came from the Latin word ō, meaning “entire.”
EXAMPLES OF TOTALITY
During the solar eclipse, we were lucky enough to witness the breathtaking totality as the moon completely blocked out the sun.
People traveled far and wide to experience the rare event of totality during the total solar eclipse, hoping to capture it through photography and memory.