Found in the following dictionaries
SOWPODS (Collins Scrabble Words)
"Reanswer" Definition
verb
To answer again or anew.
Source: Wiktionary
To repay, compensate, or make amends for.
Source: Wiktionary
To answer in return; to repay; to compensate; to make amends for.
To answer again; make a renewed reply to.
Source: Century Dictionary
To answer or satisfy as a return; correspond to; equal; balance.
Source: Century Dictionary