Principal English Translation:
strongly, very much, etc.; to do something vigorously, intensely; this is an intensifier, usually attached to verb; or, to call someone to come forth (see Molina)
Alonso de Molina:
tlaquauh. ven aca, llamando a otro, o fuerte y reziamente.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 133v. col. 1. Thanks to Joe Campbell for providing the transcription.
Andrés de Olmos:
Otras vezes para llamar dizen: tlaquauh, como si dexese xiualauh.
Andrés de Olmos, Arte para aprender la lengua Mexicana, ed. Rémi Siméon, facsimile edition ed. Miguel León-Portilla (Guadalajara: Edmundo Aviña Levy, 1972), 186.
Attestations from sources in English:
tlaquauh (adjective) = strong, forcibly
Daniel Garrison Brinton, Ancient Nahuatl Poetry: Containing the Nahuatl Text of XXVII Ancient Mexican Poems (1877), 165.
Attestations from sources in Spanish:
Este se antepone al verbo y quiere dezir : mucho. Ex. : tlaquauh xitlaqua, come mucho, o come bien, y vale tanto como si dixese : xixhui, hartate bien.