Grandfather has it's own problems:
Nearly every word in nearly every language (including emojis and emoticons) now has "problems". We're all going to the other place in an environmentally friendly mode of transport.
I suspect the "problems" were built into the design.
Etymology is one of the culprits as it exposes origins good & bad, recent and distant.
I did an etymology session with my classes each week...looking into the week's spelling words. It was always illuminating, often amusing and occasionally shocking.