Old English sæ “sheet of water, sea, lake, pool,” from Proto-Germanic *saiwaz (cf. Old Saxon seo, Old Frisian se, Middle Dutch see, Swedish sjö), of unknown origin, outside connections “wholly doubtful” [Buck].
ocean
late 13c., from Old French occean “ocean” (12c., Modern French océan), from Latin oceanus, from Greek okeanos, the great river or sea surrounding the disk of the Earth (as opposed to the Mediterranean), of unknown origin.
A hungry Kakadu crocodile was waiting on a bank of a river for a boatload of plump American tourists.
(お腹を空かせたカカドゥのクロコダイルが、太ったアメリカ人観光客の一団を求めて川岸で待っていた。)
Days passed, no tourists.
(日は過ぎても、観光客は来ない。)
Finally an Aborigine came down to the river to spear barramundi, and although he was pretty skinny, the crocodile decided that he’d be better than nothing.
So he lunged at him, grabbed his feet and began to gulp him down, bit by bit. Whereupon the long-awaited boat of American tourists came into view. One of them spied the head sticking out of the croc and said, “Look! Look!”