What's the noun for habitable? Here's the word you're looking for.
habitude
(archaic) The essential character of one's being or existence; native or normal constitution; mental or moral constitution; bodily condition; native temperament.
(archaic) Habitual disposition; normal or characteristic mode of behaviour, whether from habit or from nature
(obsolete)Behaviour or manner of existence in relation to something else; relation; respect.
(obsolete) In full habitude: fully, wholly, entirely; in all respects.
“We should all get into the habit of eating well and exercising regularly.”
“Peter had a habit of bugging his eyes out whenever he was lying.”
“Ben's inability to kick his habit would strain his relationship with friends and loved ones.”
habitus
(zoology)habitude; mode of life; bearing, general appearance.
(botany)habit; general shape and appearance of a species or variety of plant.
(sociology) The lifestyle, values, dispositions and expectations of particular social groups that are acquired through the activities and experiences of everyday life.
(liturgy) The liturgical clothing of monks, nuns and the clerical community, metaphorically refering to the religious mode of life.
“Four hours had passed, and barren mountain after barren mountain still lay ahead, the only sign of human habitation being a couple of tiny isolated dwellings.”
“The design of the latest Mars rover includes a habitation module, ensuring astronauts can comfortably live and conduct scientific activities during their mission.”
(linguistics) The verbal or noun form that expresses continuousness over a prolonged period of time, e.g. "In the 19th century men used to wear hats"; "Jane smokes cigarettes".
“The mountain, still showing the last vestiges of human inhabitance just the night before, exploded in a shower of dust.”
“The Distance from the inhabitance is about seventy miles, as we conceave by our Journeys.”
“She was leading the mare through the trees, searching as usual for a good tree to climb and those evasive signs of inhabitance when the horse stopped.”