Axis Powers: Hetalia
From the famous British WW2 propaganda slogan, "Keep calm and carry on".
A "Letter of Marque and Reprisal" was a license authorising privateers to attack and capture enemy vessels.
From "the empire on which the sun never sets", a phrase used to describe empires that had large amounts of territory around the globe.
godsaved →England
(Nyotalia; modern-day)From the British national anthem, "God Save the Queen".
"All mimsy were the borogoves, and the mome raths outgrabe", from Jabberwocky by Lewis Carroll, featured in Through The Looking-Glass and What Alice Found There.
Rome's song explaining Heaven, in which the police are British.
The capital of Seychelles is Victoria, which is a port city.
Religion in Vietnam is defined by the East Asian mix of Buddhism, Confucianism, and Taoism, which is called the Tam Giáo, or "triple religion".
How often do you not see "Made in China" printed on something?
From the famous phrase on the Gadsden flag, "Don't tread on me". From "burn 'em to ashes, then burn the ashes", the "official slogan" of the firemen in Fahrenheit 451.
Kingdom Hearts
Aqua does not sit around and pray; she acts. She also eventually proceeds beyond the point of prayer or hope after being trapped in the realm of darkness. Matches
forceless A respite is a rest. Vanitas never gives anyone a rest, and he's fairly restless himself.
EXPLANATION
White is the dominating color of the motifs relating to Naminé, and it's symbolic of her emptiness as a Nobody.
A dirge is a song played at a funeral; Xion is not remembered after her death, and is thus given no funeral and played no dirge. Matches
lamentless Shin Megami Tensei
erebusbane →Female Protagonist (P3)
(Post-P3P/'tato AU)Reference to her role as the Great Seal and her task to keep Erebus away from humanity. Matches
nyxbane Athena is Aigis' Persona and the goddess of defensive warfare; Aigis herself has a purpose to protect. She is also Athena's vessel -- so, metaphorically and physically, she could be considered Athena's hand.
Metis is the part of Aigis' psyche that she rejected following the main character's death. Also, Psyche is Metis' Persona.
soulperch →Yukiko Amagi
(Canon point undecided)From Emily Dickinson's Hope Is the Thing With Feathers. ("Hope is the thing with feathers that perches in the soul") Goes with the bird imagery of Yukiko's Shadow, and said Shadow being part of the sea of her soul, hence "perching" in her soul.
Nanako is of the Justice arcana and is also petite. Matches
littlestjustice Self-explanatory. Teddie likes bear puns.
Homestuck
Schrodinger's cat is a well-known quantum physics thought experiment, touching on when a superposition (when a given thing simultaneously exists in all possible states at once) collapses to give the one result that is ultimately observed -- e.g. a cat in a closed box which could be either dead or alive depending on a random event. According to the many-worlds interpretation, each possibility branches off into its own reality (e.g. one universe where the cat is alive and one where it is dead). Terezi demonstrates this in the coin flip with Dave, which creates a doomed timeline. Dave even references the experiment at one point, saying "it turned into schrodingers fucking dave". From this Cingular/AT&T commercial (which spawned the "idk my bff jill" meme) and Roxy's reference to Jane as her "bffsy".
ichooseu →Calliope
(Canon point undecided)A direct quote from Calliope while talking to Roxy, and Roxy gives her the options of "y/n/u". She chooses U.
A play on the "Miss Universe" beauty pageant and Snowman literally being the troll's universe.
Porrim says to Meenah that she wouldn't be of much use in a fight with Lord English except to "eerily pho+spho+resce" in his direction.
Kanaya's Trollian handle.
doomsalot →Terezi Pyrope
(Red Dead Virgo AU; canon point undecided)Karkat tells Terezi to "LAUGH IT UP, DOOMSALOT" in one of their pesterlogs.
platonist →Mairin Kunapa/The Stowaway
(Red Dead Virgo AU; canon point undecided)EXPLANATION
No More Heroes
beercans →Bad Girl
(Canon point undecided)She's an alcoholic with a fridge full of beer cans.
EXPLANATION
The Hunger Games
Rue has birds as an overarching motif, and she jumps through the trees as if flying.
Finnick is paid in secrets; additionally, most of his business is done in secret. His involvement in the plan to escape the Quarter Quell was also a secret.
Baccano!
bombshells →Nice Holystone
(Canon point undecided)Nice likes explosives and is attractive.
Puella Magi☆Madoka Magica
Terrible portmanteau of "tea" and "decapitation". Mami likes tea and gets decapitated.
Hell Girl
A covenant is an agreement between two or more people to do (or not do) something specified. Ai offers covenants to the victims that access Hell Correspondence; she will take their target to Hell, but in exchange, the victim will also go to Hell when they die.
The Melancholy of Haruhi Suzumiya
Yuki is a humanoid interface for the Data Integrated Thought Entity. She is the middle man between it and humanity; hence, "interfacing".
Princess Tutu
schwanlied →Duck/Princess Tutu
(Canon point undecided)German for "swan song". Tutu's theme is swans, and returning the last shard of the prince's heart to him is her swan song. Additionally, Tutu is cursed to remain silent about her love for the prince; if she speaks it, she will disappear, meaning those words of love would be her swan song.
Okami
dogmata →Amaterasu
(Canon point undecided)Plural of "dogma", a doctrine of beliefs for a religion. Amaterasu is a Shinto goddess. Also just a terrible wordplay/pun.
Doctor Who
The Doctor describes "Amelia Pond" as a "fairytale" name.
Pokemon Vietnamese Crystal
elfgear →Eggie
(Canon point undecided)EXPLANATION