Source : Webster's Revised Unabridged Dictionary (1913)

Typothetae \Ty*poth"e*t[ae]\, n. pl. [NL., fr. E. type + Gr. ?
   to put, set.]
   Printers; -- used in the name of an association of the master
   printers of the United States and Canada, called The United
   Typothet[ae] of America.