A podium is an elevated platform for a lecturer or orchestra conductor, while a lectern is a reading stand for a public speaker
A lecturn is a small pedistal type podium that can be portable and used for giving lectures, speeches, sermons, performing ceremonies such as weddings, commencements, etc. Also, can be used as a sheet music stand for conducting orchestral arrangements.
I'm guessing you are asking about the root for lectern, as there is no such word as lecturn. Lectern is from the Latin word legere which means "to read."
dais
podium
lego
Lecturn
The plural of podium is podiums.
Podium is a noun.
Podium.
A dais is generally a platform higher than floor level enabling people seated or standing on the dais to be seen by the rest of the people in the room, often upon which is set a "head table" and chairs. A podium is a raised platform (similar to dais). Strictly speaking, if one person is standing on a raised platform it's a podium, if there's more than one, it's a dais. Additionally, a 'lectern' is a desk or stand w/ a slanted top used by public speakers. The lectern is placed on the podium.
A pulpit is a raised platform in a church where a preacher stands to deliver a sermon, while a podium is a raised platform for a speaker or performer to stand on and address an audience. Pulpits are typically found in religious settings, while podiums are more commonly used in secular environments like conferences, lectures, and events.
Own the Podium was created in 2004.