Question: What was the form of the language that the last name Sylvester comes from, used in the era of Fastrada's spouse, later known as?

<P0-S0> the football team plays at ryan field (formerly known as dyche stadium); the basketball, wrestling, and volleyball teams play at welsh-ryan arena. <P0-S1> northwestern's athletic teams are nicknamed the wildcats. <P0-S2> before 1924, they were known as "the purple" and unofficially as "the fighting methodists." <P0-S3> the name wildcats was bestowed upon the university in 1924 by wallace abbey, a writer for the chicago daily tribune who wrote that even in a loss to the university of chicago, "football players had not come down from evanston; wildcats would be a name better suited to [coach glenn] thistletwaite's boys." <P0-S4> the name was so popular that university board members made "wildcats" the official nickname just months later. <P0-S5> in 1972, the student body voted to change the official nickname from "wildcats" to "purple haze" but the new name never stuck. <SEP> <P1-S0> Sylvester is a name derived from the Latin adjective silvestris meaning ``wooded ''or`` wild'', which derives from the noun silva meaning ``woodland ''. <P1-S1> Classical Latin spells this with i. <P1-S2> In Classical Latin y represented a separate sound distinct from i, not a native Latin sound but one used in transcriptions of foreign words. <P1-S3> After the Classical period y came to be pronounced as i. Spellings with Sylv - in place of Silv - date from after the Classical period. <SEP> <P2-S0> one key figure in the plans for what would come to be known as american empire, was a geographer named isiah bowman. <P2-S1> bowman was the director of the american geographical society in 1914. three years later in 1917, he was appointed to then president woodrow wilson's inquiry in 1917. the inquiry was the idea of president wilson and the american delegation from the paris peace conference. <P2-S2> the point of this inquiry was to build a premise that would allow for u.s authorship of a 'new world' which was to be characterized by geographical order. <P2-S3> as a result of his role in the inquiry, isiah bowman would come to be known as wilson's geographer. <SEP> <P3-S0> Charlemagne's court in Aachen was the centre of the cultural revival sometimes referred to as the "Carolingian Renaissance". <P3-S1> Literacy increased, as did development in the arts, architecture and jurisprudence, as well as liturgical and scriptural studies. <P3-S2> The English monk Alcuin (d. 804) was invited to Aachen and brought the education available in the monasteries of Northumbria. <P3-S3> Charlemagne's chancery—or writing office—made use of a new script today known as Carolingian minuscule,[M] allowing a common writing style that advanced communication across much of Europe. <P3-S4> Charlemagne sponsored changes in church liturgy, imposing the Roman form of church service on his domains, as well as the Gregorian chant in liturgical music for the churches. <P3-S5> An important activity for scholars during this period was the copying, correcting, and dissemination of basic works on religious and secular topics, with the aim of encouraging learning. <P3-S6> New works on religious topics and schoolbooks were also produced. <P3-S7> Grammarians of the period modified the Latin language, changing it from the Classical Latin of the Roman Empire into a more flexible form to fit the needs of the church and government. <P3-S8> By the reign of Charlemagne, the language had so diverged from the classical that it was later called Medieval Latin. <SEP> <P4-S0> Fastrada became the third wife of Charlemagne, marrying him in October 783 at Worms, Germany, a few months after Queen Hildegard’s death. <P4-S1> A probable reason behind the marriage was to solidify a Frankish alliance east of the Rhine when Charles was still fighting the Saxons.