1
Stage 1 of 3
spirare
Latin · ancient
"to breathe"
to breathe, combined with trans- (across)
2
Stage 2 of 3
transpirare
Latin · ancient
"to breathe across, to emit through pores"
to breathe across, to emit through pores, from trans- and spirare
3
Stage 3 of 3
transpire
English · 1600s
"to become known, or to emit vapor through pores"
settled as the English word for becoming known, or emitting vapor through pores
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