ders

Etymology
From.

Noun

 * 1) lesson
 * 2) lecture

Etymology
From, from.

Noun

 * 1)  lecture
 * 2)  lesson

Etymology
, from.

Noun

 * 1) lecture
 * 2) lesson (a section of learning or teaching)

Etymology
.

Noun

 * 1) subject, topic
 * 2) lesson