estray
/ˈɛstri/; /ˈɛstreɪ/Definitions
1. verb
to stray or wander away from one’s home or usual place of residence, especially a domestic animal
“The dog had estreated from home and was spotted several miles away.”
2. noun
an animal that has strayed or wandered away from its home or usual place of residence
“The local animal shelter received several estrays over the weekend.”