TĒYACAPAN-TLI someone firstborn / primero engendrado o nacido, o primero nacida y engendrada, primogénito o primogénita (M) [(2)Tp.134,227]. M has the variant forms tiacapan and tiyacapan, where TĒ- has shortened and changed vowel quality, as in TIĀCHCĀUH. T has E for A in the second syllable. See TĒ-, YACAPAN-TLI. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 239.