From the same on-line dictionary source from which Helen took her recent definition of "barmecide" -- and a fun one it is;¹ thank you, helen -- come the following challenge:

Yethhounds n.: A pack of phantom hounds pursuing a lady. From old English folklore. Yeth comes from heath. Also called wishhounds. Wisely is it said that the English have a word for everything. How this particular one first came into existence is a mystery to the author, even allowing for the penchat of the English for specialist hunting dogs. There appears to be no equivalent term for a pack of phantom hounds pursuing a gentleman.

Can our fine minds find the missing term?

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¹ Note: that particular dictionary-source is great fun, but should be taken with a grain of salt, for it is not scrupulously accurate.
See e.g. the recent post on xanthodontous; so too, that source's definition for barmecide is well beyond that of the more-recognized dictionaries.

Edit: "yethhounds" ... I'd bet there are very few words with a double-h.