Definition of inlock:
(v) :
(transitive) To lock in.
(v) :
(transitive) To enclose.
(n) :
A locking in.
(n) :
That which is locked in.
(n) :
An inner or interior lock.
(n) :
(law, UK dialectal, Northern England) Any corner or part of a common field plowed up and sowed with oats, etc. and sometimes fenced in with a dry hedge while the lave of the field lies fallow and common.