lud-, ludi-, lus- +

A neologism referring to the study of games, in particular computer and video games.

A clinical term used in human sexuality to describe "playful, meaningless love".

1. In music, a concluding piece or movement played at the end of an oratorio or the like; a concluding voluntary.
2. A written or spoken epilogue; an afterword, a conclusion.

1. A preliminary performance, action, event, or condition, coming before and introducing one of more importance; an introduction, preface (to a literary work).
2. In music, a movement or piece forming the introduction to a musical work; especially such a movement preceding a fugue or forming the first piece of a suite.
3. Etymology: from Middle French prélude, "notes sung" or "played to test a voice or instrument" (1532); from Middle Latin preludium, "prelude, preliminary"; from Latin prĉludere, "to play beforehand for practice, to preface"; from prĉ-, "before" + ludere, "to play".

An introduction; indicating that something of a similar kind is to follow.

1. A display introductory to a game, performance, or entertainment; a prelude, preliminary essay or attempt.
2. A literary production intended as a preliminary dissertation on a subject which the author intends to treat more fully; a preliminary essay or article; a slight literary production.