|Word root/ prefix||Root Meaning||Words based on the Root|
|Funct||perform, work||Defunct - No longer working or alive.
Function - To work or perform a role normally.
Malfunction - To fail to work correctly.
|Hept/a||seven||Heptagon - A shape with seven angles and seven sides.
Heptarchy - A government by seven persons; also, a country under seven rulers.
Heptameter - A line of verse consisting of seven metrical feet.
Heptathlon - Sporting contest involving seven different events.
|Port||carry||Export - To carry goods out of a place to another.
Portable - Able to be carried.
Porter - A person who carries luggage.
|Semi||half, partial||Semiannual - Every half year.
Semicircle - Half a circle.
Semiconscious - Partly conscious.
Semiannual - Every half of a year.
|Somn/i||Sleep||Insomnia - Inability to fall asleep.
Somniloquy - Talking in your sleep.
Somnolent - Feeling sleepy.