Where does “confocality” come from?

confocality (English) comes from English confocal, from English con-, from Middle English con-, from Latin cōn-, from Latin cum, from Old Latin com, from Proto-Italic kom, from Proto-Indo-European ḱóm — to bend; curve; arch; vault; to bow, bend, arch,...

confocality (English): The quality of being confocal

Definitions

  1. The quality of being confocal

Ancestry of “confocality”, step by step

confocality traces back through two separate lines of ancestry.

via English confocal

StepLanguageWordMeaning
1EnglishconfocalHaving the same foci; Any of a pair of confocal...
2Englishcon-used with certain words to add a notion similar...
3Middle Englishcon-con
4Latincōn-Used in compounds to indicate a being or bringing together of several objects
5Latincumwith, along with; at; -fold
6Old LatincomAlternative form of cum
7Proto-Italickomwith, along, at
8Proto-Indo-Europeanḱómbeside, near, by, with
9Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
10Middle Englishkyt
11Germankittputty certain kinds of cement used for fixing e.g. window panes
12Old High Germankuti
13Proto-West Germanickwidugum, resin
14Proto-Germanickweduzresin
15Proto-Indo-Europeangʷet-resin, gum; to say, speak
16Proto-Indo-Europeangū-to bend; curve; arch; vault; to bow, bend, arch,...

via English ity

StepLanguageWordMeaning
1Englishity
2Ingrian-uUsed to form nouns from verbs
Every word from Proto-Indo-European gū-