" involute "

[Adjective]  | "in*vo*lute" | \ ˈin-və-ˌlüt \

1: curled spirally

2: curled or curved inward

3: having the edges rolled over the upper surface toward the midrib

Origin: 1661 ;

 Borrowed from Latin involūtus "not manifest, obscure, concealed," from past participle of involvere "to move by rolling, enclose in a covering, wrap up, cover" {mat|involve|};

[Noun]  | "involute" 

1: a curve traced by a point on a thread kept taut as it is unwound from another curve

Origin: circa 1796 ;

 Borrowed from New Latin involūta, literally "(line) rolled inward," noun derivative from feminine of Latin involūtus, past participle of involvere "to move by rolling, enclose in a covering, wrap up, cover"; formed by analogy with New Latin ēvolūta {see: |evolute|evolute} {mat|involve|};

[Verb]  | "in*vo*lute" | \ ˌin-və-ˈlüt \

1: to become involute

2: to return to a former condition

3: to become cleared up : disappear

Origin: 1816 ;

 Derivative of {see: |involute:1|involute:1};

[Adjective]  | "involute"