Hi Josephine,
It looks like Clemenchia to me - with the mark above the final 'a' actually being the dot on the 'i'. That would be a phonetic representation of Clementia.
Do you know the married name of Susanna?
I am wondering about the following (census info is crown copyright).
1871, RG10/5358, Cardiff
EDWARDS Wm Geo, Head, Mar, 63, Ships Broker, b Ilfracombe
Do Clementia, Wife, Mar, 40, b Norfolk
Do Ellen, Daughter, Unm, 27, b Barnstaple
Do Frederic, Son, Unm, Ships Broker, 23, b Barnstaple
Do Willm Y, Son, 4, b Cardiff
plus a cook and a housemaid
(William is the only child of Clementia's - William snr is in the 1861 census as a Widower with four children including Ellen and Frederick)
and
1881, RG11/ 2484, Bristol St James & St Pauls Out, Gloucester
GARDNER Henry, Head, Mar, 49, Commercial Clerk, b Shoreditch Middlesex
Do Susannah S, Wife, Mar, 56, b Yarmouth Norfolk
Do Harry, Son, Unm, 21, Accountants Clerk, b Hackney Middlesex
Do Mary A, Sister, Unm, 56, Annuitant, b Shoreditch Middlesex
EDWARDS Clementia, Sister-in-law, Widow, 50, Annuitant, b Yarmouth Norfolk
Do William Y, Nephew, 14, a Scholar, b Cardiff
and a servant.
Of course, this might all be a complete red herring; if only the birthplaces of Susannah and Clementia were given as Market Dereham ... (this Susannah's birthplace is Yarmouth in 1861 and 1871 also; Harry, incidentally, is not with the family in 1871 but might be the Henry GARDENER, 11, b Middlesex London, a Scholar in Taunton Somerset)
JAP