This is the 15336th most frequent Russian word.
потеряло
"Lost" (past tense, neuter singular).
The verb "потеряло" indicates an action of losing an object, in this case the collar.
Кошка потеряла свой ошейник.
The cat lost its collar.
Here, "потеряло" describes a natural shedding or losing of leaves.
Дерево потеряло листья осенью.
The tree lost its leaves in autumn.
The word "потеряло" figuratively represents a change in state where interest decreases.