I know this has been beaten to death, but I was thinking about the following:
root (of tree): impande, ingxabo, isiqu
trunk (of tree): isiqu, isigodo
impande: root
ingxabo: root
isiqu: root, stump
Why on Earth the name Ingxabo? It is so far out there....
Medical overtones posted here as well. Could be interesting. Tree/Plant roots have been used for a millenia by tribal doctors and more recently in modern science and medicine. It's intriguing to say the least. What I know about that field I'm sure like many here you could put in a thimble, but I can't wait to see what this is all about.