'Steeper' definitions:

Definition of 'steeper'

noun

A vessel (usually a pot or vat) used for steeping

From: GCIDE

Steep \Steep\, a. [Compar. Steeper (-[~e]r); superl. Steepest.] [OE. steep, step, AS. ste['a]p; akin to Icel. steyp[eth]r steep, and st[=u]pa to stoop, Sw. stupa to fall, to tilt; cf. OFries. stap high. Cf. Stoop, v. i., Steep, v. t., Steeple.]
1. Making a large angle with the plane of the horizon; ascending or descending rapidly with respect to a horizontal line or a level; precipitous; as, a steep hill or mountain; a steep roof; a steep ascent; a steep declivity; a steep barometric gradient. [1913 Webster]
2. Difficult of access; not easily reached; lofty; elevated; high. [Obs.] --Chapman. [1913 Webster]
3. Excessive; as, a steep price. [Slang] [1913 Webster]

From: GCIDE

Steeper \Steep"er\ (-[~e]r), n. A vessel, vat, or cistern, in which things are steeped. [1913 Webster]