the Universals Archive
Read for inspiration and knowledge; and do remember that many of them aren't ironclad.

American English Dialects
A ginormous North American English dialect map. The amount of information on this is truly staggering.

Pollex
A hugantic database of Polynesian languages along with comparative analysis.

Austronesian Comparative Dictionary
The credibility of the entry in this one is a bit sus. But, some of them is pretty good.

Mh, could people please maybe use #hashtags for their links. That might make things in the thread more searchable in absence of a database proper for these; otherwise you'll get the same unordered mess that the "Resources" thread on the ZBB is. Kinda makes things hard to find in retrospect.

...hashtags?

Or whatever marks the topic of the links posted. I guess a short description of what the linked page is about like already done above works, too.

Oh ok. I was worried that I'd managed to miss a different meaning of hashtag somehow.

The Phrontistery
"Word lists and language resources to spread the joy of the English language in all its variety through time and space."
This site has, among other things, a compendium of unusual, disused and rare English words and an interesting list of glossaries. A good resource to expand your mastery of the English language or to expand your conlang's lexicon.

Luciferous Logolepsy
"[A] collection of over 9,000 obscure English words."
Very much in the same vein as Phrontistery, this also emphasizes obscuranda.

quoting Rhetorica, Kelatetía:

Luciferous Logolepsy
"[A] collection of over 9,000 obscure English words."
Very much in the same vein as Phrontistery, this also emphasizes obscuranda.

Sadly, the domain expired. A charitable soul, though, has recollected many words from the site here.

But I came here to post a link to a beautiful Etruscan lexicon. Also, this little resource on the Etruscan language.

And the Minoan Language Blog, to round up this Tyrsenian vibe.

quoting Izambri, Duke, the Findible League:

quoting Rhetorica, Kelatetía:

Luciferous Logolepsy
"[A] collection of over 9,000 obscure English words."
Very much in the same vein as Phrontistery, this also emphasizes obscuranda.

Sadly, the domain expired. A charitable soul, though, has recollected many words from the site here.

Considering that this Wayback Machine archival copy says "over 9000" and arcane.org's mirror has 9034 words, I think it's probably safe to say the arcane.org version is comprehensive.

In a less obscure capacity, I went hunting for new words to add to the Lilitika corpus a week or two ago and came upon The Oxford 3000 and 5000, word lists that the ol' Anglo-Bosporus thinks are vital for fluency. This is pretty thrilling stuff in my opinion, as the 5000 list (which starts with word #3001 and goes to word #5000) is overflowing with a rich corpus of Latin verbs and subtle distinctions.

If you ever want to translate a book into a conlang (or, at least, an English book into a conlang) I think it is absolutely vital to have a vocabulary of this scale. There are obvious biases in the vocabulary—conspicuous inclusions on the second list like "visa," "expenditure," "asylum," "championship," "earnings," "portfolio," "resignation," "emission," and "columnist" evoke the life of petty London bourgeoisie when seen in context—but I just skipped over whatever was societally irrelevant, and avoided calquing Latin compound verbs that felt too unintuitive, instead seeking alternative derivations for the connotations of the modern English usage. Cleaned-up and de-duplicated versions can be found here: 3000, 5000, using the fancy wordlist comparison tech that still hasn't been rolled out to Annie1.