POST: postmortem, postpartum, postscript, postcard, postdate

INTER: intermittent, intermingle, intergalactic, intersection, intersperse

SEMI: semicolon, semicircle, semigloss, semisweet, semiweekly

MICRO: microbalance, microbrewery, microcomputer, microengineering, microfilament

FOR: forgather, forbade, forborne, forsake, forbear

postmarked; postmaster; postmortem; postpartum; postpone;

interacted; intercepts; interfaced; interfaith; interlaced

microchips; microfilm; micrograms; micrometer; microphone

for/fore: forbear; forbid; forecast; foreshown; foretell

semicircle, semi-truck, semisweet, semiannual; semiannually

Postpartum

Intersection

Semiconscious

Microcomputer

Forearm

What was the point of this question? Are you cheating on your homework?