Etymology · Proto-Indo-European
*derbʰ-
3 English words descend from Proto-Indo-European *derbʰ-, most common first.
- turfA layer of earth covered with grass; sod.
- topsy-turvyBackwards or upside down; also, having been overturned or upset.
- turbaryPeatland from which peat or turf may be cut for fuel; (countable) a piece of such land; a peat bog.