One of romantic quadrants, type of love, used in webcomic "Homestuck" to describe semi-platonic
relationship between two trolls. The
definition diverges from the def. of "platonic love", as it is more focused on pacifying the partner and being the (often only) shoulder they can cry on, rather than being romantic friend of sorts. It is worth noting that it is stronger than love for a friend, but weaker than eros,
deep passionate love to ones romantic and/or sexual partner. Not to be confused with friendship, as Moirallegiance is very romantic, and includes cuddling, kissing, etc.
Your Moirail, aka partner in Moirallegiance, is often rerferred to as "palemate".