#rheia

Every epithet that is related to her as a goddess and her domains has a (*) by it

Adrêsteia: (The) Inescapable, Unavoidable

Alkimos: Powerful, Strong, Stout, Brave

Antaia: Approachable, One that can be approached (in prayer)

Brimô: Angry/Angry-one, Terrifying, Terrible one

*Epikhaírō: Rejoice over

Eukomos: Rich-haired

Genetyllis: Procreation, Goddess of Childbirth, Birth-helper

*Iakhê: Shout, Cry of Joy

Ida: Of Mount Ida

Idaia: Of Mount Ida (Crete)

*Kedreatis: Of the cedar tree

*Keladeinê: Lady of clamours

*Khaírō: Full of cheer (calm and at ease), To be very glad

*Khthonia: Of the earth

Kleinḗ: Famous, Renowned, Well-known. In place as Illustrious

Krátaia: Strong, Mighty

Krátaia Mêtêr: Mighty Mother

*Lāïkā́: Folk song/Folk music

*Lāïkós: Of the people, From the people, For the people (any similar sentiment along what's already mentioned)

Liparokredemnos: Bright-coiffed

Lusizônê: Goddess who loosens the girdle, in the spirit of her helping lighten birth pangs

Megalê Thea/Megala Thea: Great Goddess

*Mḗkōn: Opium poppy (genus: papaver somniferum)

Mêtêr/Mêter: Mother

Mêtêr Idaia: Mother Goddess of Mount Ida

Mêtêr Theôn Idaia: Mother of the Gods from Mount Ida

Mêtêr Megalê: Great Mother

Mêtêr Oreiês: Mountain Mother (I know theoi.com only has this listed for Kybele but considering that Rheia is literally the goddess of mountains, this is a given and belongs here)

Mêtêr Pantôn: Mother of All

Mêtêr Theôn: Mother of the Gods

*Ópion: Poppy juice, Opium

Pánsophos/Pássophos: Very wise

Pantósophos: Most Clever

*Patrôia: Of the fathers (Ancestral)

*Perikhaírō/Huperkhaírō: Rejoice exceedingly

*Pheraia: Of the beasts

*Poliatis: Keeper of the city

*Pôtnia Therôn: Queen/Mistress of beasts

*Promakhos: (the) Champion

*Propylaiê: Of the gate

*Pylaiê: Of the gates

*Pyrrhikhê: Contorted dance (usually used in honor of fallen soldiers that involved clashing shield and spear but in this sense connected to the leader of the Kouretes, Pyrrhikhos, her attendants, and the myth of Zeus hidden in the cave)

*Sidēreús: Worker in iron, Smith

*Sidēromḗtōr: Mother of iron

*Sidērophóros: Producing iron, bearing arms, bearing tools

*Sidērophuḗs: Of iron nature

*Sidērópous: Iron-footed

*Sôteira: Savior

🤷 It's a thing that exists I guess? I mean, we know nothing about what their relationship was like so I don't really have an opinion. The whole father tries to get rid of his children and mother turns against him thing was already done before them by Gaia and Ouranos (in a cooler/funnier way at that), so they don't have much going for them in the uniqueness department, nor do they interact ever again after Kronos is deposed by Zeus. Even the very little we get to know about their relationship is not particularly appealing, since when relating the union of Kronos and Rhea Hesiod describes her as tamed/subjected/subdued (δμηθεῖσα) by him, the same verb used in the Theogony to describe Thetis' marriage with Peleus (which is a forced one in the overwhelming majority of sources) and of Medea with Iason (again a union arranged by the gods), as well as Zeus overpowering Kronos and Typhoeus and Herakles defeating the Nemean Lion.