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

co-sister-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-sister-in-law (English): One's husband's brother's wife; or more generally...

Definitions

  1. One's husband's brother's wife; or more generally...

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

co-sister-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 sister-in-law

StepLanguageWordMeaning
1Englishsister-in-lawA female relative of one's generation, separated...
2Middle Englishsuster-in-lawesister-in-law
3Middle EnglishlaweA law, regulation, or a group of them; Morality,...
4Old Englishlagusea, water, lake; the runic character ᛚ; law,...
5Old Norselǫgfate; situation, the condition that one is given...
6Old Norselága felled tree; log; lying tree
7Old Norseleggjato lay, place, put; to make, build
8Proto-Germaniclagjanąto lay, to place in a resting position
9Proto-Indo-Europeanlegʰ-to lie
Every word from Proto-Indo-European gʷet-Every word from Proto-Germanic kweduzEvery word from Proto-West Germanic kwidu