malus meaning in English — bad, evil, mast

English meaning

bad adj Of low quality, unpleasant, or unsatisfactory.
evil adjective Deeply immoral and cruel; deliberately intending to cause harm.
mast noun A tall upright pole that supports sails, an antenna, or other equipment.
wicked adj Morally bad; evil or cruel.

malus is used for these senses in English:

apple tree (botany) Any tree that bears apples, principally Malus domestica but also certain wild species.
evil Intending to harm; malevolent.
mast (nautical, communications, aviation) A tall, slim post or tower, usually tapering upward, used to support, for example, sails or observation platforms on a ship, the main rotor of a helicopter, flags, floodlights, meteorological instruments, or communications equipment, such as an aerial, usually supported by guy-wires (except in the case of a helicopter). [from 9th c.]
wicked Evil or mischievous by nature; morally reprehensible.

adj Of low quality, unpleasant, or unsatisfactory.
adj Morally wrong or wicked.
adj Not functioning correctly, spoiled, or faulty.
adj Severe or serious in degree.
adj Informally, excellent, impressive, or admirably tough (a slang meaning that flips the usual sense).

adjective Deeply immoral and cruel; deliberately intending to cause harm.
adjective Unpleasant or unlucky, in a milder, informal sense.
noun Moral wickedness, or the force believed to cause suffering and wrongdoing in the world.

malignus malum