carcomer
eat away
carne
meat
+
comer
to eat
Carcomer means eat away and can be thought of as a combination of carne0 (meat0) and comer1 (to eat1), literally meaning 'to eat meat' but used more broadly to mean 'eat away'.
verb
- eat awayTo eat away, corrode, or gnawLa humedad carcomió la madera del mueble. // The humidity ate away at the furniture's wood.