puns

http://www.catb.org/jargon/html/N/nybble.html

Worth noting that at the time of documentation a half-byte was a nybble, and the more mundane spelling came along later

edit: ooooo I just remembered the Cox-Zucker algorithm too! Evidently the two guys behind the algo only decided to work together because of their last names.

https://en.wikipedia.org/wiki/Cox–Zucker_machine