What's the difference between unwont and unwonted?

Unwont

Definition:

Example Sentences:

(1) In the summer, the pheasant thyroid presents as a relatively quiescent organ with reduced secretory activity; the follicular epithelium is very low and mostly of the pavement type, while the follicles are unwontedly large and contain an increased amount of colloid.
(2) Report of an unwonted case of laryngopyocele because of its presentation.
(3) Unlike his colleagues on the Trump campaign, Manafort has a long career in politics and political consulting, one that has exposed him, ever since he joined the Trump team in March 2016, to unwonted public attention and legal hazards.

Definition:

(a.) Not wonted; unaccustomed; unused; not made familiar by practice; as, a child unwonted to strangers.
(a.) Uncommon; unusual; infrequent; rare; as, unwonted changes.

Example Sentences:

(1) In the summer, the pheasant thyroid presents as a relatively quiescent organ with reduced secretory activity; the follicular epithelium is very low and mostly of the pavement type, while the follicles are unwontedly large and contain an increased amount of colloid.
(2) Report of an unwonted case of laryngopyocele because of its presentation.
(3) Unlike his colleagues on the Trump campaign, Manafort has a long career in politics and political consulting, one that has exposed him, ever since he joined the Trump team in March 2016, to unwonted public attention and legal hazards.