sluggish
SLUG-ish · adjective
Origin
Sluggish comes from the English noun slug plus the suffix -ish, which traces back through Middle English -isch and Old English -isċ to Proto-Germanic *-iskaz and ultimately Proto-Indo-European *-iskos.
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Related words
The -ish ending links sluggish to any English word formed the same way, since that suffix's job — turning a noun into a descriptive adjective — traces back through the same Old English -isċ line.
More words
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