Meaning

noun arousal of the mind to special unusual activity or creativity

noun a product of your creative thinking and work

noun a sudden intuition as part of solving a problem

originFrom Middle English inspiracioun, from Old French inspiration, from Late Latin īnspīrātiōnem (nominative: īnspīrātiō), from Latin īnspīrātus (past participle of inspīrō). By surface analysis, inspire + -ation. Displaced native Old English onbryrdnes (literally “in-pricked-ness”).

Etymology from Wiktionary, CC BY-SA 3.0