Where does “tittehull” come from?

tittehull (Norwegian Bokmål) comes from Norwegian Bokmål hull, from Danish hul, from Old Norse hól, from Proto-Germanic hulą, from Proto-Germanic hulaz, from Proto-Indo-European ḱel- — to cover; to incline.

tittehull (Norwegian Bokmål): a peephole

Definitions

  1. a peephole

Ancestry of “tittehull”, step by step

tittehull traces back through two separate lines of ancestry.

via Norwegian Bokmål hull

StepLanguageWordMeaning
1Norwegian Bokmålhulla hole; imperative of hulle
2Danishhulhole; gap; blank
3Old Norsehóla hole
4Proto-Germanichuląa hollow; depression; hole
5Proto-Germanichulazhollow
6Proto-Indo-Europeanḱel-to cover; to incline

via Norwegian Bokmål titte

StepLanguageWordMeaning
1Norwegian Bokmåltitte
Every word from Proto-Indo-European ḱel-Every word from Proto-Germanic hulazEvery word from Proto-Germanic hulą