Both words are poetic and/or archaic. They are, rightly, not in the ALD. Most learners would not meet them in a lifetime of learning. Many native speakers would never use them, though they would probably recognise them if they saw them in a story about Ronin Hood or Ivanhoe.
You can be reasonably sure that, if you cannot find a word in the Oxford ALD or similar dictionaries, that it is not in common use. Note, however, that many technical words are not included in such dictionaries, nor are words that have very recently come into common use.
- For Teachers