Intense, almost helpless absorption or captivation.
Intense, almost helpless absorption or captivation — being held, spellbound, by something.
The high-intensity end of the interest cluster: an intense, near-helpless absorption, stronger than mild interest and the knowledge-seeking curiosity. Where interest can be casually dropped, fascination grips and holds. It overlaps enthusiasm and zeal in intensity but is absorbed and inward (you are held by the object) rather than energized and action-driving. More sustained and saturated than the piqued, briefer intrigue. The “bewitch” etymology survives as a connotation of being involuntarily spellbound.
From fascinate (1590s, “to bewitch, enchant”), from Latin fascinare “to bewitch,” from fascinum “a spell, witchcraft” (of uncertain ultimate origin).
A weakening from the literal magical sense — once used of witches and serpents casting an immobilizing spell — to the figurative “delight, attract and hold the attention,” recorded by 1815. No reliable recent-generation shift.