jeggings
n.— «“What’s so great this year,” she says, “is that they’re making jeans that are great for boots.” They’re slim, soft, light and tight, fitting almost like leggings. In fact, At the store they like to call them “jeggings.”» —“Just a bit of edge” by Jill Rosen Baltimore Sun (Maryland) Sept. 4, 2009. (source: Double-Tongued Dictionary)