something strong, robust, powerful; or, someone who has attained old age (see Karttunen)
See an image that represents chicahuac in the Visual Lexicon of Aztec Hieroglyphs, ed. Stephanie Wood (Eugene, Ore.: Wired Humanities, 2020-present).
in moteneva in chicavac, in vapavac, in tlatolli in mitoa in chichinauhtiuh, in pupucatiuh in nelhuillo in nemaco = what are called the strong, the harsh words, which are said, burned, gave off smoke; what was spoken, what was given (central Mexico, sixteenth century)
"1625...niman huel chicahuac Ynic çehuac...." = "1625...Then it froze very hard...." (Historia cronológica de la N.C. de Tlaxcala, 1310–1689)
ynic chicavac yez inic neltiz = para que tenga validez y para que se lleve a cabo (Cuauhtinchan, Puebla, s. XVI)
a 6 de abrir 1631 Chicomilhuitl yeecac huel chicahuac ayc yuhqui mochihuani quimamayauh quahuitl yhuan xacali teopancali quihuicac quapetlacali cabila = 6 de abril de 1631, que durante siete días corrió viento muy fuerte, nunca se había visto así. Tumbó árboles y se llevó el jacal del templo, el armazón de madera de la capilla. (Tlaxcala, 1662–1692)