kreislichen
Kreislichen is not a stand-alone concept, but an inflected form of the German adjective kreislich, which denotes circle-related or circular characteristics. The base term kreislich is formed from Kreis (“circle”) plus the suffix -lich, which turns nouns or stems into adjectives meaning “characteristic of” or “like.” The form kreislichen occurs when the adjective is declined to agree with a noun in certain grammatical cases and numbers.
In German, kreislich is relatively uncommon in everyday language, with kreisförmig or kreisrund being more typical
English-language references to kreislich or kreislichen are rare; when encountered, the sense is usually conveyed with