ingratiate

verb

to gain grace, favour, or acceptance from; to cause (someone) to be grateful (to oneself); to suck up to

Pronunciation: /ɪnˈɡɹeɪ.ʃi.eɪt/

Etymology: First attested in 1622. From Italian ingraziare or Medieval Latin *ingratiatus, from Latin in grātiam (“for the favor of”).

To bring oneself into favour with someone by flattering or trying to please them; to insinuate oneself; to worm one's way in.
“[H]e considered this offering an homage to his merits, and an attempt on the part of the heiress to ingratiate herself into his priceless affections.”
“[H]e would pat the children on the head when he saw them on the stairs, and ingratiate himself with them as far as he dared.”
To recommend; to render easy or agreeable.
“What difficulty would it [the love of Christ] not ingratiate to us?”
“the Sense of this will mightily indear and ingratiate them to us”