## Meanings
1. a soft mixture of lime, sand, and water that hardens and is used to cover walls and ceilings
2. to cover a wall or ceiling with plaster
3. to cover a surface thickly with something, or stick things all over it

## Examples
- The workers spread a smooth layer of plaster over the old brick wall.
- They plastered the walls before painting the room.
- Fans plastered the city with posters of the band.

## Derived Forms
- beplaster
- mustard-plaster
- plaster-stone
- plasterable
- plasterboard
- plastered
- plasterer
- plasterless
- plasterlike
- plasterly
- plasterman
- plasterwork

## Related Forms
- drywall
- gyprock
- lath
- sheetrock
- wallboard

## Roots and Affixes
- Root: plaster
- Root: plastrum
- Root: emplastrum
- Root: plastren

## Etymology
From Middle English plaster, plastre, from Old English plaster, from late Latin plastrum, shortened from Classical Latin emplastrum (“a plaster, bandage”); later reinforced by Anglo-Norman plastre. Displaced native Old English clīþa. The verb is from Middle English plastren, from the noun.

## AI Etymology
Plaster is from Middle English plaster, plastre, from Old English plaster, from late Latin plastrum, shortened from Classical Latin emplastrum (“a plaster, bandage”); later reinforced by Anglo-Norman plastre. Displaced native Old English clīþa. The verb is from Middle English plastren, from the noun. Important historical forms include Middle English plaster, Old English plaster, Latin plastrum, Latin emplastrum, and Middle English plastren. In present-day use, it can mean a soft mixture of lime, sand, and water that hardens and is used to cover walls and ceilings, or to cover a wall or ceiling with plaster.

## Topics
- House & Home
- Word Formation & Derivatives

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