/ ˈtruːsəʊ; NAmE -soʊ/ noun
( pl. trous·seaus or trous·seaux / -səʊz; NAmE -soʊz/) ( old-fashioned ) the clothes and other possessions collected by a woman who is soon going to get married, to begin her married life with
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WORD ORIGIN
mid 19th cent.: from French , diminutive of trousse bundle (a sense also found in Middle English ).