Where does “flatsedge” come from?

flatsedge (English) comes from English flat, from Scots flet, from Middle English flet, from Old English flet, from Proto-Germanic flatją, from Proto-Germanic flataz, from Proto-Indo-European plÁt-.

flatsedge (English): Any of various sedges in the genus "Cyperus"

Definitions

  1. Any of various sedges in the genus "Cyperus"

Ancestry of “flatsedge”, step by step

flatsedge traces back through two separate lines of ancestry.

via English flat

StepLanguageWordMeaning
1EnglishflatHaving no variations in height; Without...
2Scotsfletinner part of a house
3Middle Englishfletthe floor, ground; a dwelling, habitation, house,...
4Old Englishfletthe floor, ground; a dwelling, habitation, house,...
5Proto-Germanicflatjąa level surface; level ground; the floor of a...
6Proto-Germanicflatazflat
7Proto-Indo-EuropeanplÁt-

via English sedge

StepLanguageWordMeaning
1EnglishsedgeAny plant of the genus "Carex", the true sedges,...
2Middle EnglishseggeA sedge; The sliced stems of sedges; A person; an...
3Old Englishseċġsedge; man
4Proto-West Germanicsagiretainer, warrior; sedge
5Proto-Germanicsagjazretainer, warrior; sedge
6Proto-Indo-Europeansekʷ-to follow; to see; to say
Every word from Proto-Indo-European plÁt-