wear down
[verb]
Synonyms: tire, drain, fatigue, jade, wear, weary

[TahlilGaran] English Synonym Dictionary ▲

wear down phrasal verb (see also wear)

1. to gradually become flatter or smoother, or to make something become like this, because of rubbing or use:
My shoes have worn down at the heel.
wear something ↔ down
Its teeth were worn down.

2. wear somebody ↔ down to gradually make someone physically weaker or less determined:
It was clear he was being worn down by the rumours over his future.

[TahlilGaran] Dictionary of Contemporary English ▲

wear down
1. exhaust or tire someone out
He was worn down from the many questions in the meeting.

2. make something become less useful or smaller or weaker by wearing or aging
Little by little the water wore down the beach at the edge of the river.

[TahlilGaran] English Idioms Dictionary ▲