Sorry, no dictionaries indexed in the selected category contain the word pseudoarchaic.
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If not, you might try using the wildcards * and ? to find the word you're looking for. For example, use
| pseu* | | to search for words beginning with pseu, or |
| *haic | | to search for words ending with haic |
If you're sure it's a word, try doing a general web search for pseudoarchaic:  
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