From Lazarus-ccr

This keyword is used in a control construct that is similar to a while or do loop.

Syntax:

 repeat
   <statement block>
 until <condition>;

<statement block>: A single pascal statement or a begin-end statement block.

<condition>: Expression that eveluates to a boolean value.

Example:

 x := 1;
 repeat
 begin
   DoSomethingHere(x);
   x := x + 1;
 end;
 until x = 10;

Keywords: begin — do — else — end — for — if — repeat — then — until — while