Where does “Halbdoppellaut” come from?

Halbdoppellaut (German) comes from German Doppellaut, from German Laut, from Middle High German lūt, from Old High German lūt, from Proto-West Germanic hlūd, from Proto-Germanic hlūdaz, from Proto-Indo-European ḱlewtos, from Proto-Indo-European ḱlew- — to cover; to incline.

Halbdoppellaut (German): an umlaut; ä, ö or ü

Definitions

  1. an umlaut; ä, ö or ü

Ancestry of “Halbdoppellaut”, step by step

Halbdoppellaut traces back through two separate lines of ancestry.

via German Doppellaut

StepLanguageWordMeaning
1GermanDoppellautdiphthong; double vowel or double consonant
2GermanLautsound; noise
3Middle High Germanlūtloud
4Old High Germanlūtloud
5Proto-West Germanichlūdloud; sound
6Proto-Germanichlūdazloud; famous
7Proto-Indo-Europeanḱlewtosheard, famous
8Proto-Indo-Europeanḱlew-to hear
9Proto-Indo-Europeanḱel-to cover; to incline

via German halb

StepLanguageWordMeaning
1Germanhalbhalf, halfway; a half-hour before, thirty minutes...
2Middle High Germanhalp
3Old High Germanhalb
4Proto-West Germanichalbhalf
5Proto-Germanichalbazhalf
6Proto-Indo-European(s)kelH-to cut; to split, to separate
7Proto-Indo-European(s)kel-to bend, crook; bent, crooked; leg, heel, knee,...
Every word from Proto-Indo-European ḱel-