Prism
/ˈprɪz.əm/noun
A transparent optical element that refracts light, splitting it into its constituent colors.
Did you know?The ancient Greek word for 'prism' was 'prisma', meaning 'something sawed' — hinting at its ability to cut through light and reveal hidden colors!
Etymological Timeline
Ancient Greek
Greek
πρίσμα (prisma)
“A thing sawed or cut, reflecting its light-splitting nature.”
Latin
Latin
prisma
“A triangular or angular body, emphasizing its geometric form.”
Middle Ages
Old French
prisme
“Derived from Latin, introduced into scientific discourse.”
16th Century
English
prism
“Adopted into English to describe the optical device known for bending light.”
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