What are other words with the greek root ETHNO?
'Art' or 'craft' is the English equivalent of the Greek root syllable 'techn-'. Technetium is a very rare radioactive metallic element, and derives from the Greek root. The nouns technician and technology are other derivatives. The noun technocracy is still another derivative, and means 'the rule of the government by technical experts'. Technical also includes the root syllable 'techn_'.
If you mean the name Philip which in greek is Φίλιππος (feeleepos), its exactly meaning is: the one who love the horses. On the other hand if you mean the root philo- which we find in many greek originated words, as philo-sophy for example, then it comes from the verb φιλώ (philo) which means to love, to be fond of.
The word "generate" is from the Latin word generatus, which is the past participle of the verb generare, "to produce, to procreate, to beget". This is ultimately from the Proto-Indo-European root *gen- "beget; be born", which yielded many other Greek and Latin words, including the Greek word for "generate, produce", ΓΕΝΝΑΩ, ΓΕΝΝΩ.