נִכמַר הלֵב

Hebrew literary phrase meaning: the heart breaks with mercy; heartfelt compassion; to be deeply touched/heart swells up, with mercy, compassion, sorrow, longing 

Literally: Heart cracks
Source: of the word Ni'Khmar (נכמר) is biblical (Lamentations 5:10- עֹורֵ֙נוּ֙ כְּתַנּ֣וּר נִכְמָ֔רוּ - our skin cracked like an oven)
Usage: used when the heart is poignantly touched by someone/something/story that invokes much heartfelt mercy/compassion/sorrow/longing
Pronounced: Ni'KhMar Ha'Lev

למסמס

Hebrew idiom for: procrastinate, use delaying tactics, drag one's feet/heels, take one's time, play for time, play a waiting game, till the opportunity or issue fades away / dissolves / dissipates

Etymology: N/A

Literally: To dissolve / macerate
Pronounced: L'Mas'Mess

להחזיר עטרה ליושנה

Expression meaning: to restore something to its original splendor

Literally: To restore a crown to its older state
Source: The expression appears in the Babylonian Talmud (Yoma, 69), but used commonly as a flowery expression in modern day Hebrew. Often used in Israeli media, by political commentators.
Pronounced: L'Hakzir A'ta'ra L'yosh'Na

לך על זה

Hebrew idiom for: "Go for it"

Etymology: probably borrowed directly from English

Literally: Go/Walk on it
Pronounced: Lekh al Zeh (to female: Le'khee al Zeh)

ליכלוכית

Hebrew Term for: Cinderella

Etymology: Hebrew took cinder (from Cinderella) and associated it to the Hebrew word soiled/dirty and added a diminutive endearment suffix to it
Pronounced: likh'loo'kheet

לרתק

2 different usages:
In art and media its often used to describe some object/person/event that riveted attention
Also means confine
Pronounced: l'ra'tek

לחטוא לאמת

Literally: to sin/transgress/miss the truth
Pronounced: la'chtoe, la'emmet
Other forms: חוטאים לאמת
Used when commenting on a missing or poorly constructed analogy, commentary, point in case, that sins/transgresses/misses the truth, if you will

נוח לבריות

Meaning: affable, friendly, amiable, good-natured, benevolent

Pronounced: no'ach la'briyot

להקיש

to infer
also: to induce, to conclude
Pronounced: L'hakish

לרושש

Meaning: to impoverish
Often used as in: a certain expense will not impoverish me, in English that would more often be rendered as: that is not something which is going to bankrupt me
Pronounced: l'ro'sheh

להסיג גבול, השגת גבול

trespass, trespassing