Seems unlikely, Databricks used the term in a blog post January/2020[0], while the linked paper suggests it was published January/2021. Edit: Given databricks was involved in this paper, perhaps this is the first.. although both Databricks and Snowflake (and to a lesser extent Google which favours lake/warehouse convergence) have been using the term for a number of years

[0]: https://databricks.com/blog/2020/01/30/what-is-a-data-lakeho...

[1]: https://cloud.google.com/blog/products/data-analytics/data-l...