I realise that the prefix holo- is from the Greek holos meaning whole or wholly, and I have nothing against holographs, holograms, or holoplankton:
(That sort of holoplankton is a copepod.)
I also realise that holos, despite its looks, meaning and pronunciation, has very little indeed to do with the English word whole.
But still...it'd have been fun if all those holo words had been spelled wholo, wouldn't it?
Word Not To Use Without Some Regret Today: one beginning holo. The English whole comes from words to do with well-being.