Webster’s Revised Unabridged Dictionary · 1913
Start-up
Start′-up′ (stärt′ŭp′), n. 1. One who comes suddenly into notice; an upstart. [Obs.] Shak.
2. A kind of high rustic shoe. [Obs.] Drayton.
A startuppe, or clownish shoe. Spenser.
Start′-up′, a. Upstart. [R.] Walpole.