Adler prints this nominative plural headword without a gloss, while noting that one manuscript (F) has one, 'name of a people'; comparably, she reports, in the Ambrosian Lexicon. For the Goths see generally OCD(4) p.623.
As to the phrase appended (lacking in two of the manuscripts): classic synal(o)iphe (sigma 1434) is illustrated by the merging of two adjacent vowels or diphthongs, but in this instance, evidently, the point relates to the forms *Gotqoi/ and, much rarer, *Go/qoi.