stoutly
Concise Oxford English Dictionary © 2008 Oxford University Press:
stout/staʊt/
▶adjective
- 1 rather fat or heavily built.
- 2 (of an object) sturdy and thick.
- 3 brave and determined.
– derivatives
stoutish adjective,
stoutly adverb,
stoutness noun.
stoutish adjective,
stoutly adverb,
stoutness noun.
– origin ME: from Anglo-Norman Fr. and OFr. dial., of W. Gmc origin.
'stoutly' also found in these Oxford entries:

