How to Pronounce "Nacotchtank"

Here's one site that offers a pronunciation of "Nacotchtank" - the tribe of Indians that lived on Capitol Hill in the centuries before European explorers arrived.

The tribe name got an A inserted in front and got applied to what we know as the "Anacostia" River. 

Please post any links that may offer a pronunciation that may be more authentic than this.

Update, May 2023

This post from 2016 shows that I was misled by the name on the 1612 John Smith map, like many others who find the mistaken name there.

For details on the mistaken name and why "Anacostan" is the more suitable name, see these more recent posts on this blog:

http://nativevillagemarker.blogspot.com/2023/04/in-1666-treaty-anacostaub-was-used-as.html

http://nativevillagemarker.blogspot.com/2022/02/the-name-of-dcs-native-tribe-how.html