Where does “planoconvex” come from?

planoconvex (English) comes from English convex, from Middle French convexe, from Latin convexus, from Latin conveho, from Latin com-, from Latin con-, from Latin cum, from Old Latin com — resin, gum; to say, speak.

planoconvex (English): Having one side plane and the other convex

Definitions

  1. Having one side plane and the other convex

Ancestry of “planoconvex”, step by step

planoconvex traces back through two separate lines of ancestry.

via English convex

StepLanguageWordMeaning
1Englishconvexcurved or bowed outward like the outside of a...
2Middle Frenchconvexe
3Latinconvexusvaulted, arched, rounded; convex or concave;...
4LatinconvehoI carry; I collect or gather; I harvest
5Latincom-allomorph of con-
6Latincon-Used in compounds to indicate a being or bringing...
7Latincumwith, along with; at; -fold
8Old LatincomAlternative form of cum
9Proto-Italickomwith, along, at
10Proto-Indo-Europeanḱómbeside, near, by, with
11Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
12Middle Englishkyt
13Germankittputty certain kinds of cement used for fixing e.g. window panes
14Old High Germankuti
15Proto-West Germanickwidugum, resin
16Proto-Germanickweduzresin
17Proto-Indo-Europeangʷet-resin, gum; to say, speak

via English Plano

StepLanguageWordMeaning
1EnglishPlanoOf lenses: flat; having no curvature; not serving to correct the vision
2Spanishplanoplane, level; flat; plane
3Latinplānuslevel, flat, even
4Ancient Greekπλάνοςwandering
5Ancient Greekπλανάωto make to wander, lead wandering about; to lead...
6Proto-Indo-Europeanpl-néh₂-ti
Every word from Proto-Indo-European gʷet-Every word from Proto-Germanic kweduzEvery word from Proto-West Germanic kwidu