a cloud (visible mass of water droplets or other related material suspended in the air) / something spreading over like clouds in the sky / something clouded, foggy, or gloomy / the sky, heavens

【Conjunction】after; on the basis of; upon

(literally) above the clouds / (figuratively) being out of reach

頭: head

to spread, to extend

threat

to threaten, to intimidate

the above / the top (position or direction) / the surface of / superior in skill, age, level, etc.

in addition; furthermore / on top of (which)

(mythology) Princess Otohime's casket to Urashima Tarō