Where does “ilhuicaamaitl” come from?

ilhuicaamaitl (Classical Nahuatl) comes from Classical Nahuatl ilhuicaātl, from Classical Nahuatl ātl, from Proto-Nahuan *aa-, from Proto-Uto-Aztecan pa — water.

ilhuicaamaitl (Classical Nahuatl): coastal lagoon, estuary

Definitions

coastal lagoon, estuary

Ancestry of “ilhuicaamaitl”, step by step

ilhuicaamaitl traces back through two separate lines of ancestry.

via Classical Nahuatl ilhuicaātl

Step	Language	Word	Meaning
1	Classical Nahuatl	ilhuicaātl	ocean; sea, ocean
2	Classical Nahuatl	ātl	Alternative spelling of atl; water
3	Proto-Nahuan	*aa-	water
4	Proto-Uto-Aztecan	pa	water

via Classical Nahuatl māitl

Step	Language	Word	Meaning
1	Classical Nahuatl	māitl	hand, arm; arm, hand
2	Proto-Nahuan	*maa(y)(V)-	—

Every word from Proto-Uto-Aztecan pa →Every word from Proto-Nahuan *aa- →Every word from Classical Nahuatl ātl →