movement/motion; can refer to an earthquake or temblor
See an image that represents olin in the Visual Lexicon of Aztec Hieroglyphs, ed. Stephanie Wood (Eugene, Ore.: Wired Humanities, 2020-present).
John Sullivan points out that rubber in contemporary Nahuatl is olli and olin is movement. These two are often confused, although they can have a relationship, given that rubber jiggles and bounces. Glyphs of olin and olli in the Matrícula de Huexotzinco have a lot in common.
24 Octubre. 8. orllin = 24 October. Eight Motion. (central Mexico, early seventeenth century)
26. Junio. 5. orlin. = 26 June. Five Motion. (central Mexico, early seventeenth century)
Matlacpoaltica, ipan epoalli, in ilhuiuhquiçaia: in ilhuichiuililoia, ilhuiquistililoia: ipã quimattiuia, in itonal itoca naolin. Auh in aiamo quiça ilhuiuh: achtopa, nauilhuitl, neçaoaloia. = Every two hundred and sixty days, when his feast day came, then his festival was honored and celebrated. They observed it on his day sign, called Naui olin. And before his feast day had come, first, for four days, all fasted. (central Mexico, sixteenth century)
Miguel Ollin, a baptized Mexica, in July 1564, in trouble with the law for protesting the rising rates of tributes [Note: The final "n" on Ollin could be intrusive, and his name might really be Olli, "Rubber." It is difficult to know for sure. SW]