patron, protector, boss (see Karttunen); also, a title associated with some high rulers (see Sahagún)
tlacateuctli (noun) = a sovereign, a ruler
in motecuçomatzin ipiltoca, auh Tlacatecutli in itlatocatoca = Moteucçoma was his personal name and Tlacateuctli was his title as ruler (central Mexico, sixteenth century)
in tlacatecutli, in jlvicamjna, in motecuҫoma = the Tlacatecutli Motecuҫoma Iluicamina (central Mexico, sixteenth century)
vme in tecutlato, ce quappan, ce pilpan: ce quappan, tlacatecutli, tlacochtecutli, auh ce pilli: auh in quauhtlato, no ce quappan tlacateccatl, tlacochcalcatl, no ce pilli = there are two [assisting] dignitaries, one from the military, one from the nobility. The one from the military is the Tlacatecutli; the one from the nobility is the Tlacochtecutli. And of the commanders also, one is from the military, the Tlacateccatl; one also is from the nobility, the Tlacochcalcatl (central Mexico, sixteenth century)
antonio tlacatecuhctl [sic] = Antonio Tlacatecuhctli (Tepetlaoztoc, sixteenth century)