Where does “wet-blanketry” come from?

wet-blanketry (English) comes from English ry — A test pattern consisting of a repeating character string alternating letters R and Y, used to test five-level teleprinter and radioteletype (RTTY) systems.

wet-blanketry (English): The discouraging attitude of a wet blanket

Definitions

  1. The discouraging attitude of a wet blanket

Ancestry of “wet-blanketry”, step by step

wet-blanketry traces back through two separate lines of ancestry.

via English ry

StepLanguageWordMeaning
1EnglishryA test pattern consisting of a repeating character string alternating letters R and Y, used to test five-level teleprinter and radioteletype (RTTY) systems

via English wet blanket

StepLanguageWordMeaning
1Englishwet blanketA person who takes the fun out of a situation or...
Every word from English ry
wet-blanketry — Etymology, Origin & Word History | Etymology Explorer