Where does “liechtensteiniano” come from?

liechtensteiniano (Spanish) comes from Spanish Liechtenstein, from German Liechtenstein, from German Licht, from Middle High German lieht, from Old High German lioht, from Proto-West Germanic leuht, from Proto-Germanic leuhtą, from Proto-Indo-European lewktom — bright; to shine; to see.

Ancestry of “liechtensteiniano”, step by step

StepLanguageWordMeaning
1SpanishLiechtenstein
2GermanLiechtenstein
3GermanLichtlight; eye of game, especially ground game
4Middle High Germanlieht
5Old High Germanlioht
6Proto-West Germanicleuhtlight, bright; light
7Proto-Germanicleuhtąlight
8Proto-Indo-Europeanlewktom
9Proto-Indo-Europeanlewk-bright; to shine; to see
Every word from Proto-Indo-European lewk-