crept in

Verb

creep in (third-person singular simple present creeps in, present participle creeping in, simple past and past participle crept in)

1. (intransitive) To begin to affect.
   • The more you work at meditation, the more you'll find serenity creeping in.
2. (intransitive) To occur despite attempts to prevent it.
   • We have found that errors keep creeping in to your work.