Etymology of the English word tertiary
the English word
tertiaryderived from the Latin word
tertiarius (containing one-third; 1 part of one metal 2 parts of another)
derived from the Latin word
tertiusderived from the Classical Latin word
tres (three)
derived from the Proto-Indo-European root
*trei-Date
The earliest known usage of tertiary in English dates from the 16th century.
Derivations in English
phentermineUsage
Word found in Modern English
