## Meanings
1. A barrier built across a river to hold back or control the water.
2. To block or hold back the flow of water with a barrier.
3. The lake of water that builds up behind a dam.
4. The mother of an animal, especially in breeding.

## Examples
- The dam provides electricity for the whole region.
- Engineers dammed the river to create a reservoir.
- We went swimming in the dam on a hot afternoon.
- The foal stayed close to its dam in the field.

## Derived Forms
- antidam
- coffer-dam
- cofferdam
- dambreak
- damburst
- dambuster
- dambusting
- damlike
- dammable
- damside
- damsire

## Roots and Affixes
- Root: dam
- Root: *damm
- Root: *dammaz

## Etymology
From Middle English dam, from Old English *damm, from Proto-West Germanic *damm, from Proto-Germanic *dammaz.

## AI Etymology
dam comes from Middle English dam, from Old English *damm, from Proto-West Germanic *damm, from Proto-Germanic *dammaz. The historical chain includes Middle English dam, Old English *damm, Proto-West Germanic *damm, Proto-Germanic *dammaz. Current senses include A barrier built across a river to hold back or control the water and to block or hold back the flow of water with a barrier. English relatives and later formations include antidam, coffer-dam, cofferdam.

## Topics
- Space, Position & Direction
- Nature & Landscape

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