To amuse oneself in light or lively manner; to frolic.
transitive verb:
1. To divert or amuse.
2. To display.
Disport derives from Old French desporter, “to divert,” from des-, “apart” (from Latin dis-) + porter, “to carry” (from Latin portare) — hence to disport is at root “to carry apart, or away” [from business or seriousness].