Meaning

noun an episode of such pastoral or romantic charm as to qualify as the subject of a poetic idyll

noun a musical composition that evokes rural life

noun a short poem descriptive of rural or pastoral life

originFrom Latin īdyllium, from Ancient Greek εἰδύλλιον (eidúllion), from diminutive of εἶδος (eîdos, “form, shape”).

Etymology from Wiktionary, CC BY-SA 3.0