Where does “co-sibling-in-law” come from?

co-sibling-in-law (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-sibling-in-law (English): One's spouse's sibling's spouse; either of two (or more) people who marry siblings, from the perspective of the other

Definitions

  1. One's spouse's sibling's spouse; either of two (or more) people who marry siblings, from the perspective of the other

Ancestry of “co-sibling-in-law”, step by step

co-sibling-in-law 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 sibling-in-law

StepLanguageWordMeaning
1Englishsibling-in-lawA relative of one's generation, separated by one degree of marriage
2EnglishsiblingA person who shares a parent; one's brother or...
3Old Englishsiblingrelative, kinsman
4Old English-lingadverbial suffix denoting direction, state or...
5Old Englishlanglong; lasting; old, ancient; advanced
6Proto-West Germaniclanglong
7Proto-Germaniclangazlong
8Proto-Indo-Europeandlongʰoslong
Every word from Proto-Indo-European gʷet-Every word from Proto-Germanic kweduzEvery word from Proto-West Germanic kwidu