This is the 15244th most frequent Russian word.
портили
"Портили" means "spoiled" or "ruined" (past tense, plural).
The word 'портила' is used in the sense of negatively affecting or damaging plans due to unforeseen circumstances.
Машина дождь портила мои планы на выходные.
The rain spoiled my plans for the weekend.
Here, 'портила' refers to making something less clean or physically damaged.
Грязь от сапог портила чистоту ковра.
The dirt from the boots spoiled the cleanliness of the rug.
In this context, 'портили' is used to indicate causing harm or reducing the quality of a conceptual or abstract situation.