Where does “swingby” come from?

swingby (English) comes from English by, from Middle English by, from Old English bī, from Proto-West Germanic bī, from Proto-Germanic bi, from Proto-Indo-European h₂m̥bʰi, from Proto-Indo-European h₂n̥tbʰi, from Proto-Indo-European h₂énts — on, onto.

swingby (English): An interplanetary flight in which the...

Definitions

  1. An interplanetary flight in which the...

Ancestry of “swingby”, step by step

swingby traces back through two separate lines of ancestry.

via English by

StepLanguageWordMeaning
1EnglishbyNear or next to; From one side of something to...
2Middle Englishbybe
3Old Englishlullaby!; near, by; by, near, around
4Proto-West Germanicby, at; near, around
5Proto-Germanicbiby, at; near, around
6Proto-Indo-Europeanh₂m̥bʰiaround, on either side of, about; in exchange...
7Proto-Indo-Europeanh₂n̥tbʰi
8Proto-Indo-Europeanh₂éntsforehead; front
9Proto-Indo-Europeanh₂ent-face; forehead; front
10Proto-Indo-Europeanh₂en-on, onto

via English Swing

StepLanguageWordMeaning
1EnglishSwingTo rotate about an off-centre fixed point
2Middle EnglishswyngenTo strike or land a blow
3Old Englishswinganto swinge, flog, beat, scourge; to give a blow...
4Proto-West Germanic*swinganto swing
5Proto-Germanicswinganąto swing
6Proto-Indo-Europeanswenk-to bend, swing, swivel
Every word from Proto-Indo-European h₂en-