mid-15c., from Latin protectus, past participle of protegere "to protect, cover in front," from pro "before" (from PIE root *per- (1) "forward," hence "in front of, before") + tegere "to cover," from PIE root *(s)teg- "to cover." International economics sense from 1789. Related: Protected; protecting.
Weatherbeater protects your roof from the rain
prosy
Prot
protagonist
Protean
protease
protect
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protection
protectionism
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protective