Where does “Wärmflasche” come from?

Wärmflasche (German) comes from German flasche, from Middle High German flasche, from Old High German flasca, from Proto-West Germanic flaskā, from Proto-Germanic flaskǭ, from Proto-Germanic flehtaną, from Proto-Indo-European pleḱ-, from Proto-Indo-European pel- — to cover, to wrap; skin, hide, cloth; to fold.

Wärmflasche (German): hot water bottle container, nowadays usually of rubber, filled with hot water to keep one warm, especially in bed

Definitions

  1. hot water bottle container, nowadays usually of rubber, filled with hot water to keep one warm, especially in bed

Ancestry of “Wärmflasche”, step by step

Wärmflasche traces back through two separate lines of ancestry.

via German flasche

StepLanguageWordMeaning
1Germanflaschebottle; flask; flagon
2Middle High Germanflasche—
3Old High GermanflascaAlternative form of flaska; flask; bottle, flask
4Proto-West Germanicflaskābottle, flask
5Proto-Germanicflaskǭa plaiting-covered vessel; bottle, flask
6Proto-Germanicflehtanąto plait, to weave
7Proto-Indo-Europeanpleḱ-to fold, plait, weave
8Proto-Indo-Europeanpel-to cover, to wrap; skin, hide, cloth; to fold

via German wärmen

StepLanguageWordMeaning
1GermanwärmenTo warm
2Middle High Germanwermen—
3Old High Germanwermen—
4Proto-Germanicwarmijanąto warm, to heat
5Proto-Germanicwarmazwarm
6Proto-Indo-Europeangʷʰer-warm, hot
7Proto-Indo-Europeangʷʰe-gʷʰór-e ~ gʷʰe-gʷʰr-ḗr—
Every word from Proto-Indo-European pel- →Every word from Proto-Indo-European pleḱ- →Every word from Proto-Germanic flehtaną →