Definition of rough-tree in English:

rough-tree

noun ˈrʌftriː

Nautical historical

A roughly shaped but unfinished spar, especially one carried on a ship as a spare mast.

Origin

Early 17th century; earliest use found in Samuel Purchas. Apparently originally a variant of roof-tree, reflecting a pronunciation with/ʌ/ in the first element (apparently resulting from vowel shortening), but reinterpreted from an early date as if from rough + tree.

Definition of rough-tree in US English:

rough-tree

nounˈrʌftriː

Nautical historical

A roughly shaped but unfinished spar, especially one carried on a ship as a spare mast.

词汇	rough-tree
释义	Definition of rough-tree in English: rough-tree noun ˈrʌftriː Nautical historical A roughly shaped but unfinished spar, especially one carried on a ship as a spare mast. Origin Early 17th century; earliest use found in Samuel Purchas. Apparently originally a variant of roof-tree, reflecting a pronunciation with/ʌ/ in the first element (apparently resulting from vowel shortening), but reinterpreted from an early date as if from rough + tree. Definition of rough-tree in US English: rough-tree nounˈrʌftriː Nautical historical A roughly shaped but unfinished spar, especially one carried on a ship as a spare mast. Origin Early 17th century; earliest use found in Samuel Purchas. Apparently originally a variant of roof-tree, reflecting a pronunciation with/ʌ/ in the first element (apparently resulting from vowel shortening), but reinterpreted from an early date as if from rough + tree.
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