What word means to overflow or flood?

The word "inundate" specifically means to overwhelm or to flood, often used in the context of water overflowing an area, such as during heavy rainfall or rising river levels. It can also be applied metaphorically to describe being overwhelmed by tasks or responsibilities. In this way, "inundate" directly conveys the concept of an overwhelming influx, particularly relating to flooding.

On the other hand, "drain" implies the removal of liquid or resources, which is the opposite of overflowing. "Submerge" refers to the act of placing something under water or covering it completely, but it does not capture the sense of overflowing. "Deprive" suggests taking away or denying something, which is unrelated to the concept of flooding or overflowing. Thus, "inundate" is the most precise term that aligns with the meaning of overflowing or flooding.