different between scaly vs jackwood

English

From Middle English scali, skaly, equivalent to scale +? -y.

scaly (comparative scalier, superlative scaliest)

Covered or abounding with scales.
Synonyms: squamulose; see also Thesaurus:scaly
Antonyms: scaleless, esquamulose
Composed of scales lying over each other.
Resembling scales, laminae, or layers.
(dated, vulgar or South Africa) low, mean.

scaly (plural scalies)

jack +? wood

jackwood (usually uncountable, plural jackwoods)

Cryptocarya glaucescens, a rainforest tree of eastern Australia whose bark is dark brown or reddish-brown and often scaly.

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