to establish (oneself) in the favor or good graces of others, esp. by deliberate effort (usually fol. by with): He ingratiated himself with all the guests.
in·gra·ti·ate (ĭn-grā'shē-āt') tr.v.
in·gra·ti·at·ed, in·gra·ti·at·ing, in·gra·ti·ates To bring (oneself, for example) into the favor or good graces of another, especially by deliberate effort: She quickly sought to ingratiate herself with the new administration.
[Perhaps from Italian ingraziare, from in grazia, into favor, from Latin in grātiam : in, in; see in-2 + grātiam, accusative of grātia, favor (from grātus, pleasing; see gwerə-2 in Indo-European roots).] in·gra'ti·a'tion n., in·gra'ti·a·to'ry (-shē-ə-tôr'ē, -tōr'ē) adj.