Darrondir
Darrondir is not a standard or widely recognized French verb. In most contexts, the intended and correct term is arrondir, which means to round a number or to make something more rounded by smoothing its edges. Darrondir is generally regarded as a misspelling or typographical error and is not listed in major French dictionaries.
Because darrondir lacks an established definition, it does not have a formal usage in mathematics, computing,
In contrast, arrondir is a productive verb in French and appears in various phrases such as arrondir
See also: arrondir, arrondi, arrondisseur, arrondir à l’unité. Notes on usage emphasize consulting standard spelling, as