(n.) Homesickness; esp., a severe and sometimes fatal form of melancholia, due to homesickness.

Heimweh aching bathos bleeding heart cloyingness daydream daydreaming desiderium goo hankering hearts-and-flowers homesickness honing languishing languishment longing mal du pays maladie du pays maudlinness mawkishness mush mushiness namby-pamby namby-pambyism namby-pambyness nostomania oversentimentalism oversentimentality pining romanticism sentiment sentimentalism sentimentality slop sloppiness slush soap opera sob story sweetness and light tearjerker wishful thinking wishfulness wistful eye wistfulness yearnfulness yearning yen