Where does “penguinry” come from?

penguinry (English) comes from English penguin, from Welsh gwyn, from Proto-Brythonic gwɨnn, from Proto-Celtic windos, from Proto-Indo-European windo-, from Proto-Indo-European weyd- — to see.

Ancestry of “penguinry”, step by step

penguinry traces back through two separate lines of ancestry.

via English penguin

StepLanguageWordMeaning
1EnglishpenguinAny of several flightless sea birds, of order...
2Welshgwynwhite; blessed
3Proto-Brythonicgwɨnnwhite
4Proto-Celticwindoswhite
5Proto-Indo-Europeanwindo-
6Proto-Indo-Europeanweyd-to see

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
Every word from Proto-Indo-European weyd-