aculeonis

== Latin == === Etymology === From aculeus +‎ -ō(nis), with /ū/ taken from acūtus (“sharp”). Documented in the Reichenau Glossary. The nominative singular would have ended in -ō in Classical Latin. The ending -ōnis reflects a Gallo-Romance remodelling according to other inflections, for instance the accusative singular -ōnem. Compare the nominative singular pedis, standing for Classical Latin pēs in the aforementioned glossary. === Noun === acūleōnis m (genitive acūleōnis); third declension (Early Medieval Latin) spike, stinger ==== Declension ==== Third-declension noun (i-stem). ==== Descendants ==== Aragonese: agujón Franco-Provençal: agouelyon French: aiguillon (influenced by aiguille) Occitan: agulhon Piedmontese: ujon, avion === References === Walther von Wartburg (1928–2002), “*acūleo”, in Französisches Etymologisches Wörterbuch, volume 24: Refonte A–Aorte, page 124