Where does “pulsar” come from?

pulsar (Portuguese) comes from English pulsar, from English star, from Middle English sterre, from Old English steorra, from Proto-West Germanic sterrō, from Proto-Germanic sternô, from Proto-Indo-European h₂stḗr, from Proto-Indo-European h₂eHs- — to be/become dry; to burn, to glow; hearth.

pulsar (Portuguese): to pulse, beat, pulsate

Definitions

  1. to pulse, beat, pulsate

Ancestry of “pulsar”, step by step

pulsar traces back through 3 separate lines of ancestry.

via English pulsar

StepLanguageWordMeaning
1EnglishpulsarA rotating neutron star that emits radio pulses...
2EnglishstarAny small luminous dot appearing in the cloudless...
3Middle Englishsterrestar
4Old Englishsteorrastar
5Proto-West Germanicsterrō
6Proto-Germanicsternôstar
7Proto-Indo-Europeanh₂stḗrstar
8Proto-Indo-Europeanh₂eHs-to be/become dry; to burn, to glow; hearth

via Latin pulsāre

StepLanguageWordMeaning
1Latinpulsāre
2Latinpulsuspulse, impulse, beat, stroke; expelled, kicked...
3Latinpellōto push, drive, hurl, impel, propel; expel, banish, eject, thrust out
4Proto-Italicpelnōapproach, go to; bring close
5Proto-Indo-Europeanpelh₂-to approach
6Proto-Indo-Europeanpel-to cover, to wrap; skin, hide, cloth; to fold

via Latin pulsō

StepLanguageWordMeaning
1Latinpulsōto push, strike, beat, batter, hammer; knock on; pulsate
2Latin-tōForms here
3Latin-tusForms the past participle of verbs; Forms...
4Proto-Italic-tus
5Proto-Indo-European-tusDerives action nouns from verb roots

Words derived from “pulsar

Every word from Proto-Indo-European h₂eHs-Every word from Proto-Indo-European h₂stḗrEvery word from Proto-Germanic sternô