Deuteronomy 2:10 Midrash

הָאֵמִ֥ים לְפָנִ֖ים יָ֣שְׁבוּ בָ֑הּ עַ֣ם גָּד֥וֹל וְרַ֛ב וָרָ֖ם כָּעֲנָקִֽים׃

The Emim dwelt therein aforetime, a people great, and many, and tall, as the Anakim;