• proloug,
• enolig,
• orologi,
• lrolog,
• -rolog,
• 0rolog,
• peolog,
• pdolog,
• pfolog,
• ptolog,
• p5olog,
• p4olog,
• prilog,
• prklog,
• prllog,
• prplog,
• pr0log,
• pr9log,
• prokog,
• propog

• prolix,
• prologize,
• prologue,
• prologise.

The adjective form of the word "prolog" is "prologal".

The plural of the "prolog" can be the "prologs".

The singular of the "prolog" can be the "prolog".