un·chain 
(ŭn-chān)
(ŭn-chān)tr.v. un·chained, un·chain·ing, un·chains
To release from or as if from chains or bonds; set free.
un·chaina·ble adj.
- companionship
- companionway
- company
- company-grade officer
- company man
- company town
- company woman
- comparability
- comparable
- comparableness
- comparable worth
- comparably
- comparatist
- comparative
- comparatively
- comparative method
- comparator
- compare
- compare notes
- comparer
- comparison
- comparison-shop
- compart
- compartment
- compartmental