A

to swim fast, quickly (see Molina, who gives the example in the first person singular)

to divine in water (see Molina, example is given in the first person singular present tense)

to lighten a ship's load in the storm (see Molina, who gives the example in the first person singular, present tense)

one who divines in water (see Molina)

to unload or to lighten a ship (see Molina)

in, into, under the water
James Lockhart, Nahuatl as Written: Lessons in Older Written Nahuatl, with Copious Examples and Texts (Stanford: Stanford University Press and UCLA Latin American Studies, 2001), 211.

something done an inconsiderate way (see Molina)

undisciplined, poorly educated (see Molina)

a leaf, or a bird wing (see Molina and Karttunen); also part of the metaphorical expression for commoners, macehualli