Etymological root
spectrum
Latin
Words from this root(3)
spectrum
C1
/ˈspɛktrəm/
A wide range of related ideas, opinions, qualities, or things.
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specter
C2+
/ˈspɛktər/
a ghost, or a haunting threatening prospect
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spectral
C2+
/ˈspɛktrəl/
ghostly in appearance, or relating to a spectrum of light
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