A hamadryad is a mythical creature from Greek mythology. It is a female spirit of the trees, usually associated with oak trees. The term 'hamadryad' is derived from two Greek words: 'hama' meaning 'TOGETHER' and 'dryas' meaning 'oak tree'. In crossword puzzles, the term 'hamadryad' can be solved by the answers 'COBRA' (5 letters) and 'NYMPH' (5 letters). A COBRA is a venomous snake found in Africa and Asia, while a NYMPH is a minor goddess or female spirit in Greek mythology.