Gidda is an Anglo-Saxon short form of a masculine name containing gid (song).
Geddi [John Kemble 1839 Codex Diplomaticus Aevi Saxonici 1: 4].
Geda [Benjamin Thorpe 1865 Diplomatarium Anglicum Ævi Saxonici, page 632].
Geddi [Sir Allen Mawer, Sir Frank Stenton, & Sir Frederick Houghton 1927 English Place-Name Society 4: 384].
Gedda [Sir Allen Mawer, Sir Frank Stenton, & Sir Frederick Houghton 1927 English Place-Name Society 4: 384].
Giedda [John Gover, Sir Allen Mawer, & Sir Frank Stenton 1932 English Place-Name Society 9: 474].
Gidda [Keith Briggs 2021 An index to personal names in English place-names, page 137].
G(i)ed(d)a [Keith Briggs 2021 An index to personal names in English place-names, page 137].
Gid = a song, eulogy [Joseph Bosworth 1838 A Dictionary of the Anglo-Saxon Language, 1st edition, page 702].
— a = termination of pet names, such as Cutha for Cuthwine or Cuthwulf [William Searle 1897 Onomasticon Anglo-Saxonicum, page 1].
The form *Giedda is believed to occur in the place-name Yudaforda, recorded in 1086 [John Gover, Sir Allen Mawer, & Sir Frank Stenton 1932 English Place-Name Society 9: 474].