Meaning

noun flower arrangement consisting of a circular band of foliage or flowers for ornamental purposes

originFrom Middle English wreth, wrethe (“coiled or rounded shape; decorative garland, wreath; chaplet, crown; ring”, noun), from Old English wrǣd, wrǣþ, wriþa (“bandage”), from Proto-West Germanic *wrīþan (“to twist; to weave”), from Proto-Germanic *wrīþaną (“to twist; to weave”), from Proto-Indo-European *wreyt- (“to twist”). Doublet of wreathe and writhe.

Etymology from Wiktionary, CC BY-SA 3.0