IPA: /ɪnˌɡreɪʃiˈeɪʃən/
KK: /ɪnˈɡreɪʃiˌeɪʃən/
The act of trying to make someone like you or to gain their favor, often through flattery or pleasing behavior.
His ingratiation with the boss helped him get the promotion.
Ingratiation is formed from "in-" (meaning into) and "gratia" (meaning favor or grace) combined with the suffix "-tion" (indicating the action or process). The word refers to the act of bringing oneself into someone's favor or grace, often through flattery or pleasing behavior.
Think of 'bringing oneself into favor' ('in-' means into and 'gratia' means favor) — that's what ingratiation means.