Thermocryptograph (Greek and Latin)

What on earth is a Thermocryptograph? Break apart the Greek and Latin roots, figure out what it should mean, then invent what it describes.

Chronosonarium (Greek and Latin)

What on earth is a Chronosonarium? Break apart the Greek and Latin roots, figure out what it should mean, then invent what it describes.

Analyze Suffixes: -en

What exactly does adding -en to a word do? Find the pattern. Then find the words that break it.

Analyze Suffixes: -ly, -less, and -ful

What exactly does adding -less do to a word?