Where does “semihourly” come from?

semihourly (English) comes from English hourly, from English hour, from Middle English houre, from Old French houre, from Latin hōra, from Ancient Greek ὥρα, from Proto-Hellenic *worā, from Proto-Indo-European wēr- — to burn; to cover, heed, notice; squirrel.

semihourly (English): Half-hourly: occurring every thirty minutes;...

Definitions

  1. Half-hourly: occurring every thirty minutes;...

Ancestry of “semihourly”, step by step

semihourly traces back through two separate lines of ancestry.

via English hourly

StepLanguageWordMeaning
1EnglishhourlyOccurring every hour; Unsalaried, paid by the...
2EnglishhourA time period of sixty minutes; one twenty-fourth...
3Middle Englishhourehour; A time, occasion, or moment; A canonical...
4Old Frenchhourehour; time; moment to do something
5Latinhōrahour
6Ancient Greekὥραany defined period of time; season; climate
7Proto-Hellenic*worā
8Proto-Indo-Europeanwēr-true
9Proto-Indo-Europeanwer-to burn; to cover, heed, notice; squirrel

via English semi

StepLanguageWordMeaning
1EnglishsemiA semi-detached house; A semitrailer; a...
2Englishsemi-half; partial, incomplete; somewhat, rather,...
3Latinsēmi-half
4Proto-Indo-Europeansēmihalf; partially
Every word from Proto-Indo-European wer-Every word from Proto-Indo-European wēr-Every word from Proto-Hellenic *worā