A corpus is a database of texts: some deal with older texts, some with the language we speak today. This one is The Aberdeen Corpus of Older Scots (ACOS). It is a poetic corpus and spans from 1375 to 1513. You can use an IT tool, called a concordancer, to search the database for patterns.
ACOS was compiled in 2011 during my PhD at the University of Aberdeen. It has a CC BY-NC-SA 4.0 Creative Commons licence meaning you can change the corpus and share it provided you quote me as its creator and do not use it for commercial gain. The corpus is registered under the OXFORD TEXT ARCHIVE and listed as one of the Older Scots corpora on the Angus McIntosh Centre for Historical Linguistics website.
How to use the database? Simple! By clicking here, you will download the .zip file which has all the .txt files of the texts: zip file
You can navigate the files by using a freely available concordancer such as AntConc: https://www.laurenceanthony.net/software/antconc/
Many thanks to the Special Collections of the University of Aberdeen as well as the Scottish Text Society and the Association for Scottish Literary Studies for permission to put the files as an open access resource.