Where does “Kamaynilaan” come from?

Kamaynilaan (Tagalog) comes from Tagalog Maynila, from Tagalog may-, from Tagalog May, from English May, from French mai, from Old French mai, from Latin Māius, from Latin Maia — mother.

Ancestry of “Kamaynilaan”, step by step

Kamaynilaan traces back through two separate lines of ancestry.

via Tagalog Maynila

StepLanguageWordMeaning
1TagalogMaynila
2Tagalogmay-prefix denoting existence or possession of something
3TagalogMayMay
4EnglishMayThe fifth month of the Gregorian calendar, following April and preceding June
5FrenchmaiMay
6Old Frenchmai
7LatinMāius“month”}} of May
8LatinMaianominative feminine singular of Maius; nominative...
9Ancient Greekμαῖαmidwife; foster mother, nurse; good mother, dame
10Ancient Greekμήτηρmother; source or origin
11Proto-Hellenicmā́tērmother
12Proto-Indo-Europeanméh₂tērmother

via Tagalog ka- -an

StepLanguageWordMeaning
1Tagalogka- -anused to form abstract nouns
2Proto-Austronesian*ka- -an
Every word from Proto-Indo-European méh₂tēr