lubricate
verb
[ ˈluːbrɪkeɪt ]
• apply a substance such as oil or grease to (an engine or component) so as to minimize friction and allow smooth movement.
• "remove the nut and lubricate the thread"
Similar:
oil,
grease,
make slippery,
make smooth,
smear with oil,
cover with oil,
rub with oil,
moisturize,
wax,
polish,
Origin:
early 17th century: from Latin lubricat- ‘made slippery’, from the verb lubricare, from lubricus ‘slippery’.