1
Stage 1 of 3
pulsus
Latin · ancient
"beating"
from 'pellere', to drive, the root of 'propel'
2
Stage 2 of 3
pouls
Old French · medieval
"pulse"
doctors read the pulse
3
Stage 3 of 3
pulse
English · 1300s
"heartbeat"
electrical 'pulses' date from the 1900s
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