ye yuh.

Headword: 
ye yuh.
Principal English Translation: 

ago, already some number of years

Attestations from sources in English: 

This phrase + a time = that many (years) ago.

A somewhat related phrase, ye iuhqui = that's the way it is, or was.

Robert Haskett and Stephanie Wood's notes from Nahuatl sessions with James Lockhart and subsequent research.