Borrowed from Latin cōnferva. See comfrey.
conferva (plural confervas or confervae)
You can also try words with the phrase CONFERVA, words starting with the letters CONFERVA, or words ending in the letters CONFERVA.
Words… ending with q, starting with q, starting with qa, starting with qo, with two letters, starting with x, starting with j, ending with j,
Some random searches:
CFRMBFDU, JQRCXBQA, OSVEWV, NHVAET, DZY, ITS,