Noun
belongingness (usually uncountable, plural belongingnesses)
The state or quality of belonging.
Love, safety, belongingness and respect from other people are almost panaceas for the situational disturbances and even for some of the mild character disturbances. Abraham Maslow
If both the physiological and the safety needs are fairly well gratified, then there will emerge love and affection and belongingness needs, and the whole cycle already described will repeat itself with this new centre. Now the person will feel keenl. Abraham Maslow