This is what my son calls my dad. 
https://twitter.com/UnburntWitch/status/767020073449955328 …
Replying to @trochee
this is also plenty of languages, e.g. farfar in Norwegian and Swedish. Also lets you specify on which side: morfar, farmor, etc.
12:31 PM - 20 Aug 2016
from Renton, WA
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