Where does “co-bed” come from?

co-bed (English) comes from English co, from English company, from Middle English companye, from Old French compaignie, from Old French compain, from Latin compāniō, from Latin com-, from Latin con- — resin, gum; to say, speak.

co-bed (English): To share a bed with a sibling, especially a twin

Definitions

  1. To share a bed with a sibling, especially a twin

Ancestry of “co-bed”, step by step

co-bed traces back through two separate lines of ancestry.

via English co

StepLanguageWordMeaning
1EnglishcoClipping of company; they; them
2EnglishcompanyA team; a group of people who work together...
3Middle EnglishcompanyeA company, band, small group, or team of people;...
4Old Frenchcompaigniecompanionship
5Old FrenchcompainAlternative form of compaing; friend; companion
6Latincompāniōcomrade
7Latincom-allomorph of con-
8Latincon-Used in compounds to indicate a being or bringing...
9Latincumwith, along with; at; -fold
10Old LatincomAlternative form of cum
11Proto-Italickomwith, along, at
12Proto-Indo-Europeanḱómbeside, near, by, with
13Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
14Middle Englishkyt
15Germankittputty certain kinds of cement used for fixing e.g. window panes
16Old High Germankuti
17Proto-West Germanickwidugum, resin
18Proto-Germanickweduzresin
19Proto-Indo-Europeangʷet-resin, gum; to say, speak

via English bed

StepLanguageWordMeaning
1EnglishbedA piece of furniture, usually flat and soft, on...
2Middle EnglishbedA place of rest or sleep
3Old Englishbeddbed
4Proto-West Germanicbadibed
5Persianبدیbadness
6Persianبدbad; not good; evil; poorly, badly
7Middle Persian𐭯𐭥𐭭to; at; in
8Proto-Iranianpati-against, toward; lord
9Proto-Iranian*rādi-
10Proto-Iranian*rād-
11Proto-Indo-IranianHraHdʰ-
12Proto-Indo-EuropeanHreh₁dʰ-to think; to arrange; to succeed, accomplish
13Proto-Indo-Europeanh₂reh₁-to think, reason; to arrange
14Proto-Indo-Europeanh₂er-to fit, to fix, to put together
Every word from Proto-Indo-European gʷet-Every word from Proto-Germanic kweduzEvery word from Proto-West Germanic kwidu