Kin Edar was a large house in Belfast, with extensive gardens and a number of staff. It was built around 1863 and demolished in the 1940s, having lain vacant for a few years. The site was then redeveloped for housing. Kin Edar / Kinedar is a Scottish placename, and the name was given to the house by its builder / first owner Henry Hawkins, who came from Scotland. Allie Nickell, Kin Edar, A One Place Study (website).
The usual modern spelling of the Scottish place-name is Kinneddar. This is an odd anglicisation of the Gaelic Ceann Fhoithir, 'end of the terrace/ledge'. Most likely, the place in question is a small settlement in Moray on the outskirts of Lossiemouth. There was a Pictish monastery here from the 6th to 12th centuries AD and it remained an important church site until the 15th century. However, there is only the parish kirkyard (graveyard) with its parish cross to mark the site today. There is another place named Kinneddar in Fife, but of less historic importance. The reason for the choice of this name for the Belfast house is unclear.
It should be noted that Kinedar Crescent is at some distance from the former site of the house. Kin Edar was situated on the north side of Sydenham Avenue, whereas Kinedar Crescent is south of Belmont Road.
"Resolved – That on the application of Mr. Joseph McMaster the following names be approved for new streets on his property situate off Belmont and Wandsworth Roads and Hawthornden Road: – Pirrie Parade, Kin-Edar Crescent, Hawthornden Park, Knocklofty Park, Knocktern Gardens, and Belmont Drive". (14th December 1926)