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Growing the family after Cosmo

Sibling names for Cosmo

Names that sit comfortably next to Cosmo on a holiday card — same style and era, deliberately different sound. We push different first letters and rhythms so the pair reads as siblings, not twins-by-typo.

Sister names for Cosmo

Astra

of the stars

Greek
Echo

reverberating sound; nymph

Greek
Phoebe

bright one; a moon epithet

Greek
Tsuki

moon

Japanese
Genesis

origin, beginning, coming into being

Greek
Zoe

life

Greek
Kiki

new beginning; double life

Greek
Zoey

life

Greek
Selene

moon goddess

Greek

Brother names for Cosmo

Orion

hunter constellation

Greek
Atlas

to endure

Greek
Zephyr

west wind

Greek
Haruto

sun flying, soaring light

Japanese
Elio

sun

Italian
Haruki

shining sun, springtime

Japanese
Bram

father of a multitude

Dutch
Anant

infinite, eternal

Sanskrit

Works either way

Aster

star

Greek
Eon

an age without end; eternal time

Greek
Hoku

star

Hawaiian
Sol

sun

Latin
Sora

sky

Japanese
Tala

star (Tagalog)

Filipino

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