The Oera Linda Forum

The concept of SELV.TWANG, accompanied by the motivational "just do it" tagline, prompted me to conceptualize a visual representation in which Nike, the goddess of victory, is prominently featured.

Jolly!
English 'just' is related to Dutch 'juist' and the meaning from the known slogan is clearly more distant from its original. I understand why you preferred BLÁT here. For who's interested, the three fragments with JUST in OL are listed below, with page numbers. Also, one case of imperative 'to do' (in this case same as infinitive), as used in Frya's Tex.