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Webster 1828 Edition

ppr.

Commending one's self to the favor of another.

Noun.

The act of commending one's self to another's favor.

ingratiating ‎(comparative more ingratiating, superlative most ingratiating)

Which ingratiates; which attempts to bring oneself into the favour of another, often with flattery or insincerity.
That was an ingratiating smile.

ingratiating