swell
verb (used without object)
to grow in bulk, as by the absorption of moisture or the processes of growth.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Dr. Grey had resumed his walk, but the half-suppressed, passionate protest, whose underswell began to agitate her voice, arrested his attention, and he came to the table and stood close to the orphan.
From Vashti or, Until Death Us Do Part by Augusta J. Evans Wilson