ENCYCLOPEDIA of HP-VERSE(NOTE on PG-36 PLZ CHECK) - Page 16

Fiendfyre

Incantation: unknown
Effect: Creates a cursed fire, made up of flames of abnormal size and heat that can crumble fairly substantial objects to soot at a mere touch. Left burning long enough, the fire will take the shapes of gigantic fiery beasts (including serpents, chimaeras, dragons, and birds of prey) which will pursue any target humans.

References:

• One of the substances that can destroy Horcruxes, but Hermione considered it far too dangerous to ever use (DH31).

• Crabbe cast this in the Room of Requirement while it was in its Room of Hidden Things mode (DH31). He died in the ensuing magical inferno.

Etymology: "fiend" + "fyre", from Old English "fyr", fire

Finite

(fi-NEE-tay)

"finio" L. settle, end, die, cease

Stops a currently operating spell effect.

• Lupin used this spell to take a Tarantallegra Hex off Neville Longbottom (OP36).

• Harry used this spell to cancel the effects of Descendo (cast by Crabbe) on a large pile of objects (DH31).

This spell might be a shorthand way of casting the General Counter-Spell (Finite Incantatem).

"finger-removing jinx"

Incantation: unknown
Effect: Removes the target person's fingers.

References:

• Goodwin Kneen's wife, Gunhilda, hit him with this jinx after he came home a bit late from celebrating Ilkley's win in Quidditch (QA3).

Finite Incantatem

(fi-NEE-tay in-can-TAH-tum)

"finio" L. settle, end, die + "incantationem" L. the art of enchanting

Stops currently operating spell effects.

• Snape used this spell to end the various unfortunate spells that were affecting members of the Duelling Club when things got a little out of hand (CS11).

• Contrary to what is shown in CS/f, this spell does not blow up rogue Bludgers. The magic required to tamper with a Bludger is extremely high level and can't be counteracted a simple spell, especially not one cast by a 13-year-old (CS/f)

"fire whip"

Incantation: non-verbal
Effect: creates a powerful whip or lasso of fire

Dumbledore used a nonverbal spell during his duel with Voldemort in the Atrium that created a fiery rope emanating from the tip of his wand (OP36). A year later, Dumbledore used a nonverbal spell to create a ring of fire emanating from his wand like a vast lasso. It acted as a barrier against Inferi(HBP26). A year after that, McGonagall non-verbally caused a torch to fly out of its bracket, creating a ring of fire that filled the corridor and flew like a lasso at her target (DH30). Judging from the effects, these instances appear to be the same unnamed fire spell.

fire magic

References:

• "bluebell flames"
• candle magic
• Fiendfyre
• Fire-Making Spell
• "fire whip"
• Flagrate
• Flagrante Curse
• Green Sparks
• Incendio
• Red Sparks

Anti-fire magic:

• Aguamenti
• extinguishing spells
• Flame-Freezing Charm

Miscellaneous magic fires and fire effects:

• at the Quidditch World Cup, a magical fire shot violet sparks twenty feet into the air (GF7).

Other references:

• Floo Powder
• Fire Talking
• Wand Effects

"fire talking"

Incantation: initiated with Floo Powder
Effect: communication between fires

Using Floo Powder in a fire connected to the Floo Network, a person can communicate with another over distance. The head of the person making contact appears in the midst of the flames and they can hold a conversation and even interact physically with the person they are connecting to.

References:

Amos Diggory used this method of contacting Arthur Weasley when the fake Moody reported being attacked (GF11).

While in hiding, Sirius Black talked to Harry by means of a wizard fireplace (GF19).

Snape used a powder thrown into the fire to contact Lupin and ask to speak to him (PA14).

When the Ministry wanted to spy on all communication in and out of Hogwarts, they employed the Floo Regulation Board to monitor theHogwarts fires (OP27, OP28).

Fire-Making Spell

Source: The Standard Book of Spells, Grade 1 (Pm)
Incantation: Incendio (in-SEN-dee-oh)
Effect: creates fire

References:

Arthur Weasley used this to start a fire in the Dursleys' fireplace (GF4).

Used by a Death Eater to set fire to Hagrid's cabin (HBP28).

No incantation given in the book:

Hagrid started a roaring fire in the hut-on-the-rock without a wand (PS4) (PS/f depicts this incorrectly)

Wormtail started a fire under the cauldron in which Voldemort was reborn (GF32).

The spell is given a name on Pottermore.
Etymology: "incendo" L. to set fire to