well up

/W EH1 L AH1 P/
verb
  1. 1

    (intransitive) To gradually or steadily flow upwards or outwards so as to begin to fill or overflow something.

  2. 2

    (figurative, by extension, chiefly of an emotion) To accumulate within one, to the point of overwhelming one.

adjective
  1. 1

    (colloquial) Well versed; well acquainted (in or on).