eat into
US /iːt ˈɪntuː/
UK /iːt ˈɪntuː/

1.
mermar, consumir, reducir
to use up a large part of something, especially money or time
:
•
Unexpected expenses are starting to eat into our savings.
Los gastos inesperados están empezando a mermar nuestros ahorros.
•
The long commute eats into my free time every day.
El largo viaje consume mi tiempo libre todos los días.
2.
corroer, carcomer, deteriorar
to damage or destroy something gradually, especially by chemical action
:
•
The acid began to eat into the metal.
El ácido comenzó a corroer el metal.
•
Rust can eat into the structure of a bridge over time.
El óxido puede corroer la estructura de un puente con el tiempo.