solarisch

Solarisch is a German adjective meaning related to the sun or solar. The form is uncommon in everyday modern German and is often replaced by more standard terms such as solare or solar- in compounds. Historically, solarisch appears in older or more literary texts and may be encountered in dialectal or stylistic uses. The word derives from the Latin solaris (“of the sun”) and entered German through earlier linguistic layers.

In contemporary usage, describing sun-related properties typically relies on "solare" or the prefix "solar-." For example, phrases like solare Strahlung, solare Energie, or solarbetrieben (solar-powered) are common, while solarisch would sound archaic or stylistically marked. The standard noun phrases are Sonnensystem for the solar system and Sonnenenergie for solar energy; the term Solarenergie is also common as a compound noun. Some modern technical writings may still encounter solarisch in quoted historical passages or as a deliberate stylistic choice, but it remains rare outside such contexts.

Related terms include Sonnen- as a productive prefix, Solar- as a widely used compound prefix, and Sonnensystem as the preferred term for the solar system. In everyday German, solarisch is generally avoided in favor of solare, Solar-, or Sonnen- depending on the exact meaning.