Correct spelling for the English word "agreeance" is [ɐɡɹˈiːəns], [ɐɡɹˈiːəns], [ɐ_ɡ_ɹ_ˈiː__ə_n_s] (IPA phonetic alphabet).
The word "agreeance" is derived from the verb "agree" and the suffix "-ance".
The verb "agree" comes from the Old French word "agreer" or "agreier", which have their roots in the Latin word "aggratiare", meaning "to please or satisfy". This Latin word is a combination of "ad", meaning "to" or "towards", and "gratia", meaning "favor" or "grace". Over time, "agreer" evolved into "agree" in English, retaining its meaning of reaching a consensus or mutual understanding.
The suffix "-ance" is derived from the Old French suffix "-ance" or "-ence", which was originally derived from the Latin suffix "-antia" or "-entia". It is used to form abstract nouns from verbs, signifying a state, condition, or quality.