Old Icelandic
Speech parts
1. Old Icelandic - Noun
2. Old Icelandic - Proper noun
Meaning
the extinct dialect of Old Norse that was spoken in Iceland up until about 1600
Source: WordNetHypernyms
Examples
Dropping of /w/ in initial /wɾ/ is shared only with Old Icelandic.
For example, the diphthong ai in aigu, þair and waita was not retroactively umlauted to ei as in e.g. Old Icelandic eigu, þeir and veita.
Parallel occurrences — such as Old Icelandic Sui-þjòd "Sweden", Old English Angel-þēod "Anglia" and Old Irish Cruithen-tuath "country of the Picts" — indicate that it may mean "country of the Goths".
In the body of text that has come down to us from until c. 1300, Old West Norse had little dialect variation, and Old Icelandic does not diverge much more than the Old Norwegian dialects do from each other.
From the late 13th century, Old Icelandic and Old Norwegian started to diverge more.