UNCLUTCH
Un*clutch", v. t. Etym: [1st pref. un- + clutch.]

1. To open, as something closely shut. "Unclutch his griping hand." Dr. H. More.

2. (Mech.)

Defn: To disengage, as a clutch.

UNCO
Un"co, a. Etym: [Scot. The same word as E. uncouth.]

Defn: Unknown; strange, or foreign; unusual, or surprising; distant in manner; reserved. [Scot.]

UNCO
Un"co, adv.

Defn: In a high degree; to a great extent; greatly; very. [Prov. Eng. & Scot.]

UNCO
Un"co, n.

Defn: A strange thing or person. [Scot.]