What about granddad? There is a lot to learn from granddads. I had one that made the straightest arrows I could dream of. Of course he was a carpenter, with the skills to do things I could only dream of. To top it, he added spikes to them. So they were not only the straightest arrows -they were lethal.
I had another granddad. Who loved his grandchildren to such a degree, he gathered them all in his orchard every summer. The sad thing about this particular granddad was that it wasn't until his funeral I learned how libertarian he was.
Granddad is a better term. It's connected to wisdom, skill and experience.
Those three qualities are hard to come by. And something to strive for. Granddad is good.
I'm a proud Granddad too. Can't use that name though - that's reserved for my Dad - Harold G. Larimer.