Etymology
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Words related to pulse

*pel- (5)
Proto-Indo-European root meaning "to thrust, strike, drive."

It forms all or part of: anvil; appeal; catapult; compel; dispel; expel; felt (n.) "unwoven fabric matted together by rolling or beating;" filter; filtrate; impel; impulse; interpellation; interpolate; peal; pelt (v.) "to strike (with something);" polish; propel; pulsate; pulsation; pulse (n.1) "a throb, a beat;" push; rappel; repeal; repel; repousse.

It is the hypothetical source of/evidence for its existence is provided by: Greek pallein "to wield, brandish, swing," pelemizein "to shake, cause to tremble;" Latin pellere "to push, drive;" Old Church Slavonic plŭstĭ.
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pollen (n.)

1760 as a botanical term for the fine, yellowish dust that is the fertilizing element of flowers (from Linnæus, 1751), earlier "fine flour" (1520s), from Latin pollen "mill dust; fine flour," which is related to polenta "peeled barley," and probably to Greek poltos "pap, porridge," and Sanskrit pálalam "ground seeds," but the ultimate origin is uncertain.

poultice (n.)

soft and usually warm mass of meal, etc., and herbs, applied to sores or inflammations on the body," a 17c. alteration of Middle English pultes (late 14c.), from Medieval Latin pultes, ultimately from Latin pultes, plural of puls "porridge" (see pulse (n.2)). The modern form in English predominated from mid-18c.

pulsar (n.)

"highly magnetized, rotating compact star that emits beams of electromagnetic radiation," 1968, from pulse (n.1), the form on analogy of quasar. When discovered in 1967 via radio telescope, they were thought perhaps to be signals from alien civilizations and astronomers informally dubbed them LGM for "Little Green Men."

pulseless (n.)

1748, "having no pulse or heartbeat," from pulse (n.1) + -less. Figurative sense of "devoid of energy or feeling" is by 1856.

pulser (n.)

by 1940, "device that gives electrical pulses," agent noun from pulse (v.).