δύω

Etymology: From Ancient Greek δύω (dúō), meaning 'to sink, plunge, enter'. This verb shares the same Indo-European root (*deu-) as English words like 'dive' and 'dunk'. The concept of something descending or sinking below a surface is preserved across these cognates. In Greek mythology, Helios (the sun) was said to 'dive' into the ocean at sunset, which connects to this verb's primary meaning.