creep

For the verb: "to creep"

Simple Past:	crept
Past Participle:	crept

Concise Oxford English Dictionary © 2008 Oxford University Press:
creep/kriːp/

▶verb (past and past part. crept /krɛpt/)

• 1 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.

• 2 (of a plastic solid) undergo gradual deformation under stress.

• 3 (creep to) informal behave obsequiously towards.

▶noun

• 1 informal a contemptible person, especially one who behaves obsequiously in the hope of advancement.

• 2 very slow, steady movement or progress.

  ■ gradual deformation of a plastic solid under stress.

• 3 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.

– phrases
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).

– derivatives
creeping adjective.

– origin OE crēopan, of Gmc origin.