Lollardy (Lollardry, Lollardism) was a political and religious movement that existed from the mid-14th century to the English Reformation. It was initially led by John Wycliffe, a prominent theologian who was dismissed from the University of Oxford in 1381 for criticism of the Church, especially in his doctrine on the Eucharist. The Lollards' demands were primarily for reform of Western Christianity.
Lollard, Lollardi or Loller was the popular derogatory nickname given to those without an academic background, educated (if at all) only in English, who were reputed to follow the teachings of John Wycliffe in particular, and were certainly considerably energized by the translation of the Bible into the English language. By the mid-15th century, "lollard" had come to mean a heretic in general. The alternative, "Wycliffite", is generally accepted to be a more neutral term covering those of similar opinions, but having an academic background.
The term is said to have been coined by the Anglo-Irish cleric, Henry Crumpe, but its origin is uncertain. According to the Oxford English Dictionary, it most likely derives from Middle Dutch lollaerd ("mumbler, mutterer"), from a verb lollen ("to mutter, mumble"). It appears to be a derisive expression applied to various people perceived as heretics—first the Franciscans and later the followers of Wycliffe. Originally the word was a colloquial name for a group of the harmless buriers of the dead during the Black Death, in the 14th century, known as Alexians, Alexian Brothers or Cellites. These were known colloquially as lollebroeders (Middle Dutch for "mumbling brothers"), or Lollhorden, from Old High German: lollon ("to sing softly"), from their chants for the dead.