English word entertaining comes from English entertain

Detailed word origin of entertaining

Dictionary entry	Language	Definition
entertain	English (eng)	(obsolete) Entertainment; pleasure.. (obsolete) Reception of a guest; welcome. (obsolete) To lead on; to bring along; to introduce.. (obsolete) To meet or encounter, as an enemy.. (obsolete) To take or keep in one's service; to maintain; to support; to harbour; to keep.. (transitive) To amuse (someone); to engage the attention of agreeably.. (transitive) To receive and take into [...]
entertaining	English (eng)	(archaic) entertainment Very amusing; that entertains.