Coat of arms of the University of Toronto
The coat of arms of the University of Toronto is the primary emblem of the University of Toronto, which is the largest university in Canada. It is currently used in several different contexts by the University and can be seen on its own, on the University banner, as part of the heraldic achievement of the University, or featured in the logos of numerous University divisions, as well as the logo of the University as a whole. Despite its varied usage, modification of the coat of arms is extremely rare, as its use  is strictly controlled by the University's Office of International, Governmental, and Institutional Relations. Several University divisions, notably the colleges, have their own emblems, and they do not regularly use the University coat of arms. The motto, which is not itself part of the arms but of the overall heraldic achievement, is "velut arbor aevo", Latin for "may it grow as a tree through the ages". This phrase originates from Horace's "Odes", book I, ode 12, line 45: "crescit occulto velut arbor ævo fama Marcelli" ("the fame of Marcellus grows like a tree over time unseen"). Blazon. The blazon  of the University coat of arms is as follows: The armorial bearings of the University are blazoned by the Canadian Heraldic Authority as follows: History. The origins of the coat of arms are obscure. The earliest reference to the device is an 1857 recommendation that the senate of the University adopt the coat of arms, which was accepted. From that point on, the general design has remained largely unchanged. There have been minor alterations, such as the loss of the original supporters (Minerva and Victoria) and the transformation of the beaver from an aggressive to a more benign charge over  time. The latter was described by University graphic designer Caz Zyvatkauskas in 2000 as the "emasculation of the U of T beaver". In 1917, owing to a lack of uniformity among the coats of arms on campus due to decades of lax regulation, the board of governors petitioned the College of Arms to create an official description of the University coat of arms. The result was the current blazon, quoted in the preceding section. The arms of University College were completed at the same time. Both arms cost the University a combined £89, six shillings. It was at this  time that the crest of the University, which was originally a maple tree, became an oak tree. The armorial bearings of the University of Toronto were registered with the Canadian Heraldic Authority on May 20, 2016. Associated emblems. The University of Toronto contains many divisions, some of which use emblems distinct from those of the University. Some University divisions were founded as independent institutions and were later absorbed into the University. This, as well as the different aesthetics of those eras during which the emblems were designed, accounts for the difference in styles used by each institution. Coat of arms