Extradition, Ignore, Diamagnetism

In pursuance of my note to you regarding the definition of words in science and literature which may have sprung up of late years, will you allow me to quote, as instances in the latter department, the two words "extradition" and "ignore?" 1. Is the following a correct definition of "extradition," viz., "the surrender by a state, of a political refugee, at the request of a foreign power?" 2. Is the etymology of the word made up of "extra" and "ditio" put for "deditio," a giving up or surrendering? Does "ignore" mean to "treat as non-existent;" and are there no other words in the language which…