Where does “dragonsbreath” come from?

dragonsbreath (English) comes from English dragon, from English drag queen, from English Queen, from Middle English quene, from Old English cwene, from Old English cwēn, from Proto-West Germanic kwāni, from Proto-Germanic kwēniz — woman.

Ancestry of “dragonsbreath”, step by step

dragonsbreath traces back through two separate lines of ancestry.

via English dragon

StepLanguageWordMeaning
1EnglishdragonA legendary serpentine or reptilian creature; An...
2Englishdrag queenA person, usually male, who dresses up in women's...
3EnglishQueenA title used before the personal name of a queen
4Middle EnglishqueneA queen; Any powerful woman noble; A female...
5Old Englishcwenea woman; inflection of cwēn: ##...
6Old Englishcwēnqueen; woman, wife, queen
7Proto-West Germanickwāniwoman, wife
8Proto-Germanickwēnizwife
9Proto-Indo-Europeangʷḗnwoman
10Proto-Indo-Europeangʷen-woman

via English breath

StepLanguageWordMeaning
1EnglishbreathThe act or process of breathing; A single act of...
2Middle Englishbreethbreath
3Old Englishbrǣþodor, scent, stink, exhalation, vapor
4Proto-Germanicbrēþizvapour; steam; breath; odour, smell
5Proto-Indo-Europeanbʰrē-t-exhalation from heat; steam
6Proto-Indo-Europeanbʰer-to bear, carry
Every word from Proto-Indo-European gʷen-Every word from Proto-Indo-European gʷḗnEvery word from Proto-Germanic kwēniz