transitive. To cringe to (a person). Obsolete. rare.

To be complaisant with, make oneself agreeable to (persons), in conduct or action; to accommodate oneself to the desires or wishes of: the notion…

To cringe or be servile to (a person, etc.).

transitive. To follow, or fawn upon, like a spaniel.

transitive. To say ‘yes, sir’ to (a person); (hence) to defer to (someone) as a superior.

transitive. U.S. To say ‘yes’ to; to agree with or assent to; to behave in an obsequious or ingratiating manner towards.

transitive. To flatter (a person) excessively or insincerely, esp. with the aim of gaining favour or advancement.

intransitive and transitive. To perform fellatio on (a man). Also figurative: to behave obsequiously, to suck up to (someone).

transitive. To curry favour with; to behave obsequiously towards; to flatter.

figurative. To behave sycophantically or abjectly. Frequently const. to. colloquial.