Where does “威而剛” come from?

威而剛 (Chinese) comes from English Viagra, from Sanskrit व्याघ्र, from Proto-Indo-Aryan wyāgʰrás, from Proto-Indo-Iranian wyāgʰrás.

Ancestry of “威而剛”, step by step

StepLanguageWordMeaning
1EnglishViagrathe drug sildenafil citrate, used to treat erectile dysfunction
2Sanskritव्याघ्रa tiger; any pre-eminently strong or noble...
3Proto-Indo-Aryanwyāgʰrás—
4Proto-Indo-Iranianwyāgʰrás—
Every word from Proto-Indo-Iranian wyāgʰrás →Every word from Proto-Indo-Aryan wyāgʰrás →Every word from Sanskrit व्याघ्र →