## Meanings
1. The covering on top of a building that protects it from rain and weather.
2. The top inner surface of a space, such as a cave or the mouth.
3. To put a roof on a building.

## Examples
- The storm tore part of the roof off the house.
- The tongue touches the roof of the mouth to make certain sounds.
- They roofed the new shed with metal sheets.

## Derived Forms
- deroof
- disroof
- ecoroof
- house-roof
- moonroof
- nonroof
- overroof
- reroof
- roof-plate
- roofage
- roofball
- roofbeam

## Roots and Affixes
- Root: rof
- Root: hrōf
- Root: *hrōfą

## Etymology
From Middle English rof, from Old English hrōf (“roof, ceiling; top, summit; heaven, sky”), from Proto-Germanic *hrōfą (“roof”). Cognate with Scots ruif (“roof, ceiling”), Dutch roef (“cabin on a boat”), Icelandic hróf (“shed”), Irish cró (“pen, barn, cabin”), Proto-Slavic *stropъ (“roof, ceiling”). Compare Faroese rógv (“something high up”).

## AI Etymology
Roof comes from Middle English rof, from Old English hrōf (“roof, ceiling; top, summit; heaven, sky”), from Proto-Germanic *hrōfą (“roof”). Cognate with Scots ruif (“roof, ceiling”), Dutch roef (“cabin on a boat”), Icelandic hróf (“shed”), Irish cró (“pen, barn, cabin”), Proto-Slavic *stropъ (“roof, ceiling”). Compare Faroese rógv (“something high up”). Modern senses include the covering on top of a building that protects it from rain and weather. and the top inner surface of a space, such as a cave or the mouth.. The wider word family includes derivatives such as deroof, disroof, ecoroof, house-roof, moonroof, and nonroof.

## Topics
- House & Home
- Tools, Machines & Construction

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