epigram
Concise Oxford English Dictionary © 2008 Oxford University Press:
epigram /ˈɛpɪgram/
▶noun a concise and witty saying or remark.
■ a short witty poem.
– derivatives
epigrammatic adjective,
epigrammatically adverb,
epigrammatist noun,
epigrammatize (or epigrammatise) verb.
epigrammatic adjective,
epigrammatically adverb,
epigrammatist noun,
epigrammatize (or epigrammatise) verb.
– origin ME: from Fr. épigramme, or L. epigramma, from Gk, from epi ‘upon, in addition’ + gramma (see -gram1).
'epigram' also found in these Oxford entries:

