Where does “equiconcave” come from?

equiconcave (English) comes from English concave, from Old French concave, from Latin concavus, from Latin com-, from Latin con-, from Latin cum, from Old Latin com, from Proto-Italic kom — to bend; curve; arch; vault; to bow, bend, arch,...

equiconcave (English): Having surfaces with the same concave radius of curvature

Definitions

  1. Having surfaces with the same concave radius of curvature

Ancestry of “equiconcave”, step by step

StepLanguageWordMeaning
1Englishconcavecurved like the inner surface of a sphere or...
2Old Frenchconcave
3Latinconcavusconcave, hollow; vaulted, arched
4Latincom-allomorph of con-
5Latincon-Used in compounds to indicate a being or bringing...
6Latincumwith, along with; at; -fold
7Old LatincomAlternative form of cum
8Proto-Italickomwith, along, at
9Proto-Indo-Europeanḱómbeside, near, by, with
10Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
11Middle Englishkyt
12Germankittputty certain kinds of cement used for fixing e.g. window panes
13Old High Germankuti
14Proto-West Germanickwidugum, resin
15Proto-Germanickweduzresin
16Proto-Indo-Europeangʷet-resin, gum; to say, speak
17Proto-Indo-Europeangū-to bend; curve; arch; vault; to bow, bend, arch,...
Every word from Proto-Indo-European gū-