εἰσοικειόω
From LSJ
ἀγαπήσεις τὸν πλησίον σου ὡς σεαυτόν → love your neighbor as yourself, thou shalt love thy neighbour as thyself, love thy neighbour as thyself
English (LSJ)
A bring in as a friend, τινὰ γάμοις Plu.Alex.10 :—Pass., become intimate with, X.HG5.2.25.
German (Pape)
[Seite 744] zum Freunde machen; pass., Xen. Hell. 5, 2, 25; γάμοις Plut. Alex. 10.