lemniscatus

Leminscatus (noun) The infinity (∞) sign. Derived from the Latin 'lēmniscātus,' meaning "decorated with ribbons", and which itself ioriginates from the Greek 'λημνίσκος' (lēmnískos), meaning "ribbon."

The lemniscatus is a figure-eight curve that resembles a group of curves in algebraic geometry collectively called lemniscates. Jacob Bernoulli first used the term 'lemniscate' in the late 17th century, based on the same Latin and Greek roots. While a 'lemniscate' refers to any algebraically defined figure-eight curve, the lemniscatus specifically symbolises the concept of infinity.

Johann knew that his brother Jake was serious about studying philosophy at university when Jake came home one day sporting a new lemniscatus tattoo on his arm.