bois·ter·ous 
(boistər-əs, -strəs)
(boistər-əs, -strəs)adj.
1. Loud or noisy and lively or unrestrained: a boisterous street market. See Synonyms at vociferous.
2. Rough and stormy; violent: boisterous winds; a boisterous voyage.
[Middle English boistres, variant of boistous, rude, rough, perhaps from Old French boisteus, lame, limping, from boiste, knee joint.]
boister·ous·ly adv.
boister·ous·ness n.
- Indo-European root: od-
- Indo-European root: oi-no-
- Indo-European root: oit-
- Indo-European root: oktō(u)
- Indo-European root: okw-
- Indo-European root: op-
- Indo-European root: or-
- Indo-European root: orbh-
- Indo-European root: ors-
- Indo-European root: ost-
- Indo-European root: ous-
- Indo-European root: owi-
- Indo-European root: pag-
- Indo-European root: pan-
- Indo-European root: pant-
- Indo-European root: papa
- Indo-European root: past-
- Indo-European root: pau-
- Indo-European root: pau-
- Indo-European root: paəwr̥
- Indo-European root: ped-
- Indo-European root: peig-
- Indo-European root: peiə-
- Indo-European root: peku-
- Indo-European root: pekw-