'To fit up' definitions:

Definition of 'To fit up'

From: GCIDE

Fit \Fit\, v. t. [imp. & p. p. Fitted; p. pr. & vb. n. Fitting.]
1. To make fit or suitable; to adapt to the purpose intended; to qualify; to put into a condition of readiness or preparation. [1913 Webster]
The time is fitted for the duty. --Burke. [1913 Webster]
The very situation for which he was peculiarly fitted by nature. --Macaulay. [1913 Webster]
2. To bring to a required form and size; to shape aright; to adapt to a model; to adjust; -- said especially of the work of a carpenter, machinist, tailor, etc. [1913 Webster]
The carpenter . . . marketh it out with a line; he fitteth it with planes. --Is. xliv. 13. [1913 Webster]
3. To supply with something that is suitable or fit, or that is shaped and adjusted to the use required. [1913 Webster]
No milliner can so fit his customers with gloves. --Shak. [1913 Webster]
4. To be suitable to; to answer the requirements of; to be correctly shaped and adjusted to; as, if the coat fits you, put it on. [1913 Webster]
That's a bountiful answer that fits all questions. --Shak. [1913 Webster]
That time best fits the work. --Shak. [1913 Webster]
To fit out, to supply with necessaries or means; to furnish; to equip; as, to fit out a privateer.
To fit up, to furnish with things suitable; to make proper for the reception or use of any person; to prepare; as, to fit up a room for a guest. [1913 Webster]