Mariadok as a Baby Name. Meaning and Origin of Mariadok

What is the meaning of the name Mariadok ?

The baby name Mariadok is a Male name , 4 syllables long and is pronounced /ˌmɛriəˈdɒk/ (MEH-ree-ə-DOK).

Mariadok is Breton, Welsh in Origin.

Mariadok is a Brythonic name; a modernized spelling of Meriadoc/Meiriadog known in medieval Welsh and Breton. It comes through Latin Meriadocus. Its precise etymology is uncertain; scholars have proposed derivation from Brittonic mawr “great” plus an adjectival -iadog/-adeg suffix, yielding senses like “great, magnanimous” or “lordly,” while others treat it as an opaque early saint’s name. Because of this, meanings such as “princely” or “greatly generous” are often given but should be taken cautiously.

The name appears in the 12th–13th‑century Latin romance Historia Meriadoci regis Cambriae and in Breton hagiography for Saint Mériadec, later Bishop of Vannes; it also survives in Welsh place‑names like Cefn Meiriadog (Denbighshire). Tolkien revived the form Meriadoc for the hobbit Meriadoc “Merry” Brandybuck, prompting modern awareness. Variants include Meriadoc (English/Latin), Meiriadog (Welsh), Mériadec/Meriadek (Breton/French), and Mariadok or Meriadok as modernized or Slavic‑influenced spellings.

⚙ We can't find Mariadok in any of the birth registries or name datasets we track. It's the kind of name that tends to be rare, regional, or newly made up. Whatever the reason, hardly anyone else has it.