Malign means to speak ill of someone.
Malignant means harmful and evil in nature.
Mandarin means an influential official.
Legacy means something handed down from the past; heritage.
Lesion means a wound or area of damaged tissue; an injury.
Libellous means damaging to someone's reputation; defamatory.
Lien means a legal claim on property until a debt is paid.
Loath means unwilling; reluctant.
Lucid means clear and easy to understand.
Luminary means a famous or prominent person.
Lustrous means shining with a soft glow.
Labyrinth means a maze of winding passages.
Laxity means lack of strictness; looseness.
Jeer means to mock rudely; to sneer.
Jeopardise means to put at risk.
Judicious means showing good judgement; wise and careful.
Jurisdiction means the official power to make legal decisions.
Kindle means to set alight or arouse.
Knack means a special skill or ability.
Knave means a dishonest or unprincipled man; a scoundrel.
Interdict means an official order forbidding something.
Interpolate means to insert something into a text or series.
Intimacy means close familiarity; closeness.
Intractable means hard to control or deal with; stubborn.
Intricate means having many small parts; complicated.