"that must be done as a condition," c. 1600, past-participle adjective from require (v.). Required reading, that which must be read to attain an understanding of a subject, is attested from 1881.
c. 1300, "written works, literature;" late 14c., "learning from books," from Medieval Latin lectura "a reading," from Latin lectus, past participle of legere "to read," originally "to gather, collect, pick out, choose" (compare elect), from PIE root *leg- (1) "to collect, gather," with derivatives meaning "to speak (to 'pick out words')." Thus to read is, perhaps, etymologically, to "pick out words."
The sense of "a reading aloud, action of reading aloud" (either in divine worship or to students) in English emerged early 15c. That of "a discourse on a given subject before an audience for purposes of instruction" is from 1530s. Meaning "admonitory speech given with a view to reproof or correction" is from c. 1600. Lecture-room is from 1793; lecture-hall from 1832. In Greek the words still had the double senses relating to "to speak" and "to gather" (apologos "a story, tale, fable;" elaiologos "an olive gatherer").
large island lying to the east of and near Africa, from Mogadishu, the name of the city in Somalia, due to an error by Marco Polo in reading Arabic, whereby he thought the name was that of the island. There is no indigenous name for the whole island. Related: Madagascan; Madagascarian; Madagascarene.