En-
Enclose
Cause to be closed
Perspective
Inclined to see through
Seminnual
Happening every half a year
Entrust
cause to trust
Enable
Cause to be able
Permanent
Lasts through the years; lasts forever
Semicircle
Half of a circle
Permit
To allow through
Enlighten
Cause to be in light
Realistic: to give knowledge
Permeate
Cause to go through
Semicolon
A type of punctuation using half of a colon
;
Perennial
Bonus:
enn - yearly
Through the years
Enjoyable
Persevere
To not give up, no matter what you go through
Semifinal
Happening partway to the finals
Semiweekly
Happening every half of a week (two times weekly)