D

Daedalus
Greek mythology: A legendary Athenian who built the labyrinth for Minos and made wings for himself and his son Icarus to escape from Crete

DEED e lus

Dean Thomas
A Gryffindor. Check out what JK Rowling has to say about him
deen/TA mus
Delacour
French, meaning: Of the court

DEL a kore

Dementor
The once guards of Azkaban. They are black, ghostly figures known for sucking the soul from humans

di MEN ter

Diagon
The name of the famous wizarding alley in London. Taken from 'diagonally'

die A gen

Diggory
1. Amos' last name. Cedric's father. Works at the Ministry of Magic in the Department for the Regulation and Control of Magical Creatures
2. Cedric's last name

DIG a ree

Disapparate
This is the same as Aparating, only this is what the actual act of disappearing is called
dis-AP-uh-rayt
Dissendium
The spell to open the one-eyed crone's hump in one of the passages to Hogsmeade

dis EN dee um

Divination
The practice of seeking to foretell future events or discover hidden knowledge by occult or supernatural means

div en AY shun

Dobby
Former house elf of the Malfoys. Now working at Hogwarts. Another name for a Brownie (a good elf that helps with household chores at night)

DA bee

Dolores
Latin, meaning: Lady of sorrows. Former DADA teacher
de-LOR-us
Draco
Constellation name, meaning: The dragon. Latin. Harry's rival hailing from Slytherin

DRAY ko

Dudley
Meaning: From the meadow. Harry's unboundedly large, blonde-haired bully of a cousin

DUD lee

Dumbledore
Old English. meaning: Bumblebee

DUM bul door

Durmstrang
The Bulgarian school of magic and wizardry
DIRM straing
Dursley
A borough of Gloucestershire, west of London, England. The last name of Harry's only living relatives
DURZ lee