Same with Lake Ontario. “Ontario” is Iroqois for “Beautiful Lake” or “Big body of water”

The word Ontario originates an Iroquois word meaning “beautiful lake,” “beautiful water,” or “big body of water,”

https://www.thoughtco.com/ontario-508567

GrapheneOS

When I search for it on stock android on my P7, it says it’s in Google Play Services. So my guess is it isn’t part of AOSP, therefore GrapheneOS wouldn’t have it, unless they make their own implementation