Talmid,
one can conjecture if one so wishes,whatever one likes
In the Sefer B’Tuv Yerushalayim it relates that the Maharil Diskin refused to speak to a certain Talmid Chacham of Jerusalem because he used to spek only Loshon HaKodesh. Said the Maharil Diskin, “For generations we are accustomed to speaking Yiddish, not Loshon HaKodesh.”
p.s. However it seems is disciple R’ Sonnenfeld later regretted this .He even answered the Mandate language census replying he spoke hebrew
Of Interest,the Debreciner Rav ZL was asked about about english and he replied that “Yeshivishizing” english suffices to fulfill what the Chasam Sofer wanted. We borrow many expressions from Yiddish, Aramaic (as in l’chorah, memaileh etc) and Hebrew (like mamsh), as well as changing the usage and syntax (The usage of the word “by” in “I was by so-and-so for Shabbos” )