Where does “tester” come from?

tester (Norwegian Bokmål) comes from Norwegian Bokmål teste, from English Test, from German testen, from German Test, from English test, from Middle English teste, from Old French teste, from Latin testis — to stand.

tester (Norwegian Bokmål): indefinite plural of test; present of teste

Definitions

  1. indefinite plural of test; present of teste

Ancestry of “tester”, step by step

StepLanguageWordMeaning
1Norwegian Bokmåltesteto test
2EnglishTesta Test match
3Germantestento test
4GermanTesttest; melting pot
5EnglishtestA challenge, trial; A cupel or cupelling hearth...
6Middle Englishteste
7Old Frenchtestehead
8Latintestiswitness; one who testifies or attests; testicle
9Latinterstis
10Latintrīstissad, unhappy, melancholy, morose
11Proto-Indo-Europeantristh₂sa third party standing, after the two parties to...
12Proto-Indo-Europeansteh₂-to stand
Every word from Proto-Indo-European steh₂-Every word from Proto-Indo-European tristh₂sEvery word from Latin trīstis