timidly
Concise Oxford English Dictionary © 2008 Oxford University Press:
timid/ˈtɪmɪd/
▶adjective (timider, timidest) lacking in courage or confidence.
– derivatives
timidity noun,
timidly adverb,
timidness noun.
timidity noun,
timidly adverb,
timidness noun.
– origin C16: from L. timidus, from timere ‘to fear’.
'timidly' also found in these Oxford entries:

