thin out, open out; become sparse
Latin word, found 21 times in the texts on Socratos.
Vergil, Aeneid 3.411: ventus, et angusti rarescent claustra Pelori,
Ovid, Metamorphoses 15.246: in liquidas rarescit aquas, tenuatus in auras
Tacitus, Germania 30.1: Ultra hos Chatti initium sedis ab Hercynio saltu incohant, non ita effusis ac palustribus locis ut ceterae civitates in quas Germania patescit, durant siquidem colles, paulatim rarescunt, et Chattos suos saltus Hercynius prosequitur simul
All forms of raresco