les·to·bi·o·sis \ˌlestōˌbīˈōsə̇s\noun (plurallestobio·ses \-ōˌsēz\) Etymology: New Latin, from Greek lēistēs robber + New Latin -biosis; akin to Latin lucrum gain, profit — more at lucre : cleptobiosis in which covert thievery replaces aggressive plundering