History Main / WordOName

* Creator/DCComics has such characters as Amazo, [[Franchise/{{Superman}} Bizarro]], Chemo, [[ComicBook/LegionOfSuperheroes Computo]], Despero, Eclipso, Giganta, Volcana, Prince Evillo, Mano, [[Franchise/{{Superman}} Metallo]], Metamorpho, [[Franchise/GreenLantern Sinestro]], Starro, Titano, and Universo. [[LampshadeHanging Lampshaded]] in a ''Franchise/JusticeLeagueOfAmerica'' Annual backup story, in which Starro assembles the O-Squad.

* ''WebAnimation/ThePinkCity'': Invisible-O the ghost, whose primary trait is being invisible.

--> '''Fry''': ''(discovering they're all out of the ointment that gave him and Leela superpowers)'': El zilcho!\\

* Creator/DCComics has such characters as Amazo, [[{{Superman}} Bizarro]], Chemo, [[ComicBook/LegionOfSuperheroes Computo]], Despero, Eclipso, Giganta, Volcana, Prince Evillo, Mano, [[Franchise/{{Superman}} Metallo]], Metamorpho, [[Franchise/GreenLantern Sinestro]], Starro, Titano, and Universo. [[LampshadeHanging Lampshaded]] in a ''Franchise/JusticeLeagueOfAmerica'' Annual backup story, in which Starro assembles the O-Squad.

** The deaf-mute, nameless Harpo Marx look-alike mouse in the episode "The Pied Piper Power Play" was given the FanNickname Mouseo.

* ''WesternAnimation/{{Disenchantment}}'': A RunningGag involves most of the Elves being named in this manner, with the word the "O" is added to either reflecting their personality, appearance, or place in the Elf Society. There's Elfo, Rulo (the king), Leavo, Returno, Annoyo, Desserto and Speako, just to name a few. Elfo's name is an IronicName since it's revealed near the end of Season 1 that he is only half-Elf. The female Elves avert the "A"-names however; the only named one so far is named Kissy.

'''Sorcerio:''' Tacking an "O" on the end of "Elf"? [[HypocriticalHumor Bah!]]

* ''WesternAnimation/WildKratts'': Many of the names that Martin gives animals are simply the name of the specied with an "-a" on the end, such as "Crocodilla".

** In "It's a Bird, It's Insane, It's Dale!" when Dale decides to be a superhero, he dubs himself Rubber Bando, and sallies forth to fight evil and thwart villains.

* ''WesternAnimation/Amphibia'': In Season 2, Polly befriends a frog robot, which she names Frobo.

* Early [[ComicBook/WonderWoman1942 Golden Age]] ''Franchise/WonderWoman'' had several villains and allies whose names were created by taking an existing word and tacking on an -a, regardless of gender. These included, among others, Athleta, Glamora, Jumpa, Mammotha, Metala, Signa, and Wanta.

** The BigBad of the episode '"he Inhuman Torch" is an [[EvilLivingFlames evil flame creature]] appropriately named Flamo.

* Creator/DCComics has such characters as Amazo, [[{{Superman}} Bizarro]], Chemo, [[ComicBook/LegionOfSuperheroes Computo]], Despero, Eclipso, Giganta, Prince Evillo, Mano, [[Franchise/{{Superman}} Metallo]], Metamorpho, [[Franchise/GreenLantern Sinestro]], Starro, Titano, and Universo. [[LampshadeHanging Lampshaded]] in a ''Franchise/JusticeLeagueOfAmerica'' Annual backup story, in which Starro assembles the O-Squad.

Note that the rest of the character's name must be a significant word or variant of such. Rambo's name might end in O, but he is not an example of this trope. Same for Luna.

->'''Bean''': His name is Elfo for Pete's Sake
->'''Sorcerio''': Tacking an "O" on the end of "Elf"? [[HypocriticalHumor Bah!]]
-->-- ''WesternAnimation/{{Disenchantment}}'' - ''To Thine Own Elf Be True''

--->'''Starro''': We villainous few share two ''common bonds'' -- The burning desire to enslave the Earth over the charred remains of the hated ''Justice League''...
--->...and our names all end in "''O''".

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[[folder:Films - Animation]]

* ''Literature/InDeath'' series: The books ''Survivor In Death'' and ''Innocent In Death'' have little kids putting "o" at the end of words. This creates words like "crap-o", "what-o", and "lame-o". The implication is that kids do this to sound impressive.

[[folder:Theater]]

[[folder:Web Video]]

** The BigBad of the episode ''The Inhuman Torch'' is an [[EvilLivingFlames evil flame creature]] appropriately named Flamo.

-->'''Tino:''' Aah! (falls off his seat)
-->'''Teacher:''' Uuuuh, (writes name on chalkboard) Screamo.

[[/folder]]

->'''Sorcerio''': Tacking an "O" on the end of "Elf"? Bah!

Subtrope of MeaningfulName. Compare ElSpanishO and {{Ladyella}}. These names are highly prone to LazilyGenderFlippedName or SobriquetSexSwitch where the character's O is simply changed to an A, or vice versa.

* Creator/MarvelComics has Aiero, Professor X's machine Cerebro, Chemistro, [[ComicBook/SpiderMan Electro]], another Elektro (a giant robot), ComicBook/{{Magneto}}[[note]]Thouh while it fits the trope ("Magnet" + "O"), it is [[https://en.wikipedia.org/wiki/Magneto actually an existing word as well]][[/note]], Mentallo, [[ComicBook/SpiderMan Mysterio]], Obnoxio the Clown, and Pyro (although that is a recognised word element).

* ''ComicBook/{{Tigra}}'', a female hero with powers based on a Tiger.

* Creator/DCComics has such characters as Amazo, [[{{Superman}} Bizarro]], Chemo, [[ComicBook/LegionOfSuperheroes Computo]], Despero, Eclipso, Giganta, Prince Evillo, Mano, [[Franchise/{{Superman}} Metallo]], Metamorpho, [[Franchise/GreenLantern Sinestro]], Starro, Titano, and Universo.
** [[LampshadeHanging Lampshaded]] in a ''Franchise/JusticeLeagueOfAmerica'' Annual backup story, in which Starro assembles the O-Squad.

* Creator/MarvelComics has Aiero, Professor X's machine Cerebro, Chemistro,[[ComicBook/SpiderMan Electro]], another Elektro (a giant robot), ComicBook/{{Magneto}}[[note]]Thouh while it fits the trope ("Magnet" + "O"), it is [[https://en.wikipedia.org/wiki/Magneto actually an existing word as well]][[/note]], Mentallo, [[ComicBook/SpiderMan Mysterio]], Obnoxio the Clown, and Pyro (although that is a recognised word element).

* ''WesternAnimation/CodenameKidsNextDoor'': The ?villain? for a ShowWithinTheShow based off the KND is called Homework-O, [[ItMakesJustAsMuchSenseInContext an evil robot who keeps kids from doing their homework.]]