EKISTICS   The science of human settlements.

EKISTICS  (modern Greek: OIKISTIKH) is derived from the ancient Greek adjective oikistikoV more particularly from the neuter plural oikistika (as physics is derived from fusika, Aristotle).  The ancient Greek adjective oikistikoV meant: "concerning the foundation of a house, a habitation, a city or colony; contributing to the settling."  It was derived from oikistikhV, an ancient Greek noun meaning "the person who installs settlers in place".  This may be regarded as deriving indirectly from another ancient Greek noun, o kisiV, meaning "building", "housing", "habitation", and especially "establishment of a colony, a settlement , or a town" (already in Plato), or "filling with new settlers", settling", "being settled".  All these words grew from the verb  oikizw, to settle and were ultimately derived from the noun o koV, "house", "home" or "habitat.

The shorter Oxford English Dictionary contains a reference to an oecist, oekist or oikist, defining him as: "the founder of an ancient Greek ... colony". The English equivalent of oikistikh is ekistics (a noun).  In addition, the adjectives ekistic and ekistical, the adverb ekistically, and the noun ekistician are now also in current use.  The French equivalent is ekistique, the German oekistik, the Italian echistica (all feminine).