G2845–κοίτη–koitē

and he from within will answer and say, 'Don't bother me. The door is now shut, and my children are with me in bed. I can't get up and give it to you'?

κοίτην koitēn “bed”

Not only so, but Rebecca also conceived by one, by our father Isaac.

κοίτην koitēn “conception”

Let us walk properly, as in the day; not in reveling and drunkenness, not in sexual promiscuity and lustful acts, and not in strife and jealousy.

κοίταις koitais “in sexual immorality”

Let marriage be held in honor among all, and let the bed be undefiled: but God will judge the sexually immoral and adulterers.

κοίτη koitē “marriage bed”