The Latin noun senex means an old man and senes is the plural: old men
Senex.
Senex is singular in Latin and it means "old man" or "elder." The plural form is senes.
Senator
Senex amat cogitare.
Old, aged, advanced in years or mature
Koyaga senex was created in 1881.
Blenina senex was created in 1878.
John Senex was born in 1678.
John Senex died in 1740.
Pietro Senex died in 1134.
Aoraia senex was created in 1908.
The root word for "senior" is the Latin word "senex," which means old or old man.