I. -lē, -li adjective
Etymology: Middle English manerly, from manere manner + -ly
1. obsolete : decorous , seemly , moral
2. : showing good manners : civil , respectful , polite
pleasant to record that they were agreeable and mannerly — A.W.Long
II. adverb
Etymology: Middle English manerly, from manerly, adjective
1. obsolete : decently , decorously
2. : with good manners : politely , respectfully , civilly
will always pull mannerly over to the curb — Christopher Morley