DSL Online brings together the two major historical dictionaries of the Scots language: Modern Scots (after 1700) in The Scottish National Dictionary (SND); Older Scots (before 1700) in A Dictionary of the Older Scottish Tongue (DOST).
DSL...
Lexicons of Early Modern English (LEME) is a historical database of monolingual, bilingual, and polyglot dictionaries, lexical encyclopedias, hard-word glossaries, spelling lists, and lexically-valuable treatises surviving in print or manuscript...