v.
 (past and past part. crept  
/krɛpt/
)
   - move slowly and carefully, especially in order to avoid being heard or noticed. ▸move or progress very slowly and steadily. ▸(of a plant) grow along the ground or other surface by extending stems or branches. 
- (of a plastic solid) undergo gradual deformation under stress.
- 
(creep to)
 informal behave obsequiously towards.
n.
   - informal a contemptible person, especially one who behaves obsequiously in the hope of advancement.
- very slow, steady movement or progress. ▸gradual deformation of a plastic solid under stress. 
- Brit. an opening in a hedge or wall for an animal to pass through. ▸a feeding enclosure for young animals, with a long, narrow entrance. 
Phrase
  
    - give someone the creeps
 informal induce a feeling of revulsion or fear in someone.
- make one's flesh creep
 cause one to feel revulsion (likened to the sensation of something crawling over the skin).
 
  Derivative
  
  Etymology
  OE crēopan, of Gmc origin.