The term 'Early Briton' refers to the inhabitants of Britain during the Iron Age, from around 800 BC to the Roman invasion in 43 AD. The crossword solutions for this term are 'PICT' and 'CELT'. The Picts were a group of people who lived in what is now Scotland during the Iron Age and Early Medieval periods. They left behind a rich legacy of art and architecture, including carved stones and symbols. The Celts were a group of people who lived in Britain and Europe during the Iron Age and Early Medieval periods. They were known for their art, literature, and religious beliefs. Both the Picts and Celts were important parts of the Early Briton culture.