clarify
Concise Oxford English Dictionary © 2008 Oxford University Press:
clarify /ˈklarɪfʌɪ/
▶verb (clarifies, clarifying, clarified)
- 1 make more comprehensible.
- 2 (usu. as adj. clarified) melt (butter) to separate out the impurities.
– derivatives
clarification noun,
clarificatory adjective,
clarifier noun.
clarification noun,
clarificatory adjective,
clarifier noun.
– origin ME: from OFr. clarifier, from late L. clarificare, from L. clarus ‘clear’.
'clarify' also found in these Oxford entries:

