yecen.

Headword: 
yecen.
Principal English Translation: 

ultimately, or recently (see Molina)

IPAspelling: 
jesen
Alonso de Molina: 

yecen. vltimadamente.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 34v. col. 2. Thanks to Joe Campbell for providing the transcription.

Attestations from sources in English: 

yecen (adverb) = finally, at last
Daniel Garrison Brinton, Ancient Nahuatl Poetry: Containing the Nahuatl Text of XXVII Ancient Mexican Poems (1877), 168.