Difference between Scarce and Scarcely

SCARCE vs SCARCELY: ADJECTIVE

Not enough; hard to find
Hard to find; absent or rare.
Insufficient to meet a demand or requirement; short in supply.
Deficient in quantity or number compared with the demand
Not plentiful or abundant; in small quantity in proportion to the demand; not easily to be procured; rare; uncommon.
Sparing; frugal; parsimonious; stingy.
To decamp; to depart.
Scantily supplied (with); deficient (in); -- with of.
Uncommon, rare; difficult to find; insufficient to meet a demand.

Synonyms and Rare, Scarce. See rare.
Characterized by scarcity, especially of provisions, or the necessaries of life.
To make less; diminish; make scant.
Hardly; barely; scarcely.
Sparing; parsimonious; niggard; niggardly; stingy.
Almost not
Scantily supplied; poorly provided; not having much: sometimes with of.
Diminished; reduced from the original or the proper size or measure; deficient; short.
Deficient in quantity or number; insufficient for the need or demand; scant; scanty; not abundant.
Few in number; seldom seen; infrequent; uncommon; rare: as, scarce coins; a scarce book.
(idiom) (make (oneself) scarce) To depart, especially quickly or furtively; abscond.
(idiom) (make (oneself) scarce) To stay away; be absent or elusive.

Precious, Scanty, Shortages, Finite, Sparse, Scarcity, Abundant, Just, Barely, Scarcely, Hardly, Deficient, Tight, Rare, Insufficient

Nigh, Simply, Merely, Virtually, Not, Almost, Little, Only, Practically, Rarely, Seldom, Scarce, Just, Barely, Hardly

Scant, Precious, Scanty, Shortages, Finite, Sparse, Abundant, Just, Barely, Scarcely, Hardly, Deficient, Tight, Rare, Insufficient

Nigh, Simply, Merely, Virtually, Not, Almost, Little, Only, Practically, Rarely, Seldom, Scarce, Just, Barely, Hardly

Nevertheless, reddy tin is scarce, and bills abound.
Extended flat areas preferred for airports are scarce.
Seems IP addresses are an scarce resource nowadays.
CLABSI prevention program, especially if resources are scarce.
Mexican curb could scarce control when once aroused.
But, resources that satisfy human wants are scarce.
They were a scarce resource because of government regulation and, as with all scarce resources, they become expensive.
As something becomes more scarce or less scarce, the desire for it does not change in a proportionate way.
Hardin argues that just like space on a lifeboat is scarce, resources are similarly scarce.
This follows from the nature of scarce goods and scarce factors.