“ Bob Budiansky stated in an interview that the name “Megatron” is a portmanteau derived from “Megaton” and “Electronic”. He suggested the name “Megatron” for the Transformers line (it’s unclear if he was aware of the existing Marvel character, though as an editor it seems likely that he at least had a subconscious memory of it) but Hasbro initially rejected it, claiming that “mega” conjured images of nuclear bombs. Budiansky reminded them that the name was supposed to sound evil, because he’s the leader of the bad guys. Hasbro responded, “Oh, right”, and then approved the name.”
A Force Sensitive Phasesixer 