God (word) - Wikipedia

The Proto-Germanic meaning of *gudą and its etymology is uncertain. It is generally agreed that it derives from a Proto-Indo-European neuter passive perfect participle *ǵʰu-tó-m.[1]: 193–194  Depending on which possibility is preferred, the pre-Christian meaning of the Germanic term may either have been (in the "pouring" case) "libation" or "that which is libated upon, idol" — or, as Watkins[2] opines in the light of Greek χυτη γαια "poured earth" meaning "tumulus", "the Germanic form may have referred in the first instance to the spirit immanent in a burial mound" — or (in the "invoke" case) "invocation, prayer" (compare the meanings of Sanskrit brahman) or "that which is invoked."

The earliest uses of the word God in Germanic writing is often cited to be in the Gothic Bible or Wulfila Bible, which is the Christian Bible as translated by Ulfilas into the Gothic language spoken by the Eastern Germanic, or Gothic, tribes. The oldest parts of the Gothic Bible, contained in the Codex Argenteus, are estimated to be from the fourth century. During the fourth century, the Goths were converted to Christianity, largely through the efforts of Bishop Ulfilas, who translated the Bible into the Gothic language in Nicopolis ad Istrum in today's northern Bulgaria. The words guda and guþ were used for God in the Gothic Bible.

Influence of Christianity

God entered English when the language still had a system of grammatical gender. The word and its cognates were initially neuter but underwent transition when their speakers converted to Christianity, "as a means of distinguishing the personal God of the Christians from the impersonal divine powers acknowledged by pagans."[3]: 15  However, traces of the neuter endured. While these words became syntactically masculine, so that determiners and adjectives connected to them took masculine endings, they sometimes remained morphologically neuter, which could be seen in their inflections: In the phrase, guþ meins, "my God," from the Gothic Bible, for example, guþ inflects as if it were still a neuter because it lacks a final -s, but the possessive adjective meins takes the final -s that it would with other masculine nouns.[3]: 15 

God and its cognates likely had a general, predominantly plural or collective sense prior to conversion to Christianity. After conversion, the word was commonly used in the singular to refer to the Christian deity, and also took on characteristics of a name.[3]: 15–16 [4]