English
sweatproof
From sweat + -proof.
Formed from sweat + -proof
Proto-Indo-European *sweyd- ‘to sweat’
Proto-Indo-European *swoyd- ‘to sweat’
Proto-Germanic *swait-
Old English swāt
Middle English swete ‘blood’
English sweat
Today it means
adj Resistant to sweat.
Language periods are conventional ranges, not dates for this word.
Etymograph / sweatproof