What are some good resources for finding the meaning of unfamiliar Hebrew and Aramaic words in Acharonim?
I have no trouble using Jastrow for Tanach and Shas but I find it difficult to apply to Acharonim. How might I use it more effectively? Are there peculiarities of grammar I'm missing? For a few ...
Is the dictionary that he wrote still in copyright, or has it entered the public domain? If not, who owns the rights to it?
Which has more entries, BDB or Strong's Hebrew? Is there any known mapping between the two?