Where does “rayproof” come from?

rayproof (English) comes from English Ray, from Middle English rayen, from English array, from Middle English arrayen, from Anglo-Norman arraier, from Latin arrēdō, from Gothic 𐌲𐌰𐍂𐌰𐌹𐌸𐍃, from Proto-Germanic garaidaz — resin.

rayproof (English): Shielded to prevent the emission of X-rays

Definitions

  1. Shielded to prevent the emission of X-rays

Ancestry of “rayproof”, step by step

rayproof traces back through two separate lines of ancestry.

via English Ray

StepLanguageWordMeaning
1EnglishRayalso used as a formal given name
2Middle Englishrayen
3EnglisharrayClothing and ornamentation; A collection laid out...
4Middle Englisharrayen
5Anglo-Normanarraier
6LatinarrēdōTo advise
7Gothic𐌲𐌰𐍂𐌰𐌹𐌸𐍃appointed, ordained
8Proto-Germanicgaraidazready, arranged, prepared
9Proto-Germanicga-Indicates association or togetherness; co-;...
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

via English proof

StepLanguageWordMeaning
1EnglishproofAn effort, process, or operation designed to...
2Middle Englishproof
3Old Frenchprove
4Latinprobatest, trial; proof, evidence
5Latinprobāre
6Latinprobōto approve, permit, commend
7LatinProbusgood, serviceable, excellent, superior, able
8Proto-Indo-Europeanpro-bhwo-being in front, prominent
9Proto-Indo-Europeanpro-toward, forward
10Proto-Indo-Europeanpor-to give birth; forward, through; going, passage
11Proto-Indo-Europeanper-before, in front; first; to go through
12Proto-Indo-Europeanpr̥tóspassed , crossed
Every word from Proto-Germanic kweduz
rayproof — Etymology, Origin & Word History | Etymology Explorer