Correct spelling for the English word "over seen" is [ˌə͡ʊvə sˈiːn], [ˌəʊvə sˈiːn], [ˌəʊ_v_ə s_ˈiː_n] (IPA phonetic alphabet).
The verb phrase "overseen" is derived from the combination of two words: "over", meaning above or beyond, and "seen", the past participle of the verb "see".
"Over" comes from the Old English word "ofer", which has Germanic roots and is related to the Dutch word "over" and the German word "über". "Seen" comes from the Old English word "seon", which also has Germanic origins and is akin to the Dutch word "zien" and the German word "sehen".
Therefore, the etymology of "overseen" suggests the idea of watching or supervising something from a higher or superior position.