snuck 
(snŭk)
(snŭk)v.
A past tense and a past participle of sneak. See Usage Note at sneak.
- countercheck
- counterclaim
- counterclaimant
- counterclockwise
- counterconditioning
- countercoup
- countercultural
- counterculture
- counterculturist
- countercurrent
- countercurrently
- countercyclical
- counterdemonstration
- counterdemonstrator
- counterespionage
- counterexample
- counterfactual
- counterfeit
- counterfeiter
- counterfoil
- counterforce
- counterglow
- counterinsurgency
- counterinsurgent
- counterintelligence