chester — a city in NW England, administrative centre of the unitary authority of Cheshire West and Chester, on the River Dee: intact surrounding walls; 16th- and 17th-century double-tier shops. Pop: 80 121 (2001)
fester — to form pus; generate purulent matter; suppurate.
jester — a person who is given to witticisms, jokes, and pranks.
lester — a male given name: from the English placename “Leicester.”.
mester — Obsolete form of mister (employment, trade).
nester — a pocketlike, usually more or less circular structure of twigs, grass, mud, etc., formed by a bird, often high in a tree, as a place in which to lay and incubate its eggs and rear its young; any protected place used by a bird for these purposes.
nestor — the oldest and wisest of the Greeks in the Trojan War and a king of Pylos.
pester — to bother persistently with petty annoyances; trouble: Don't pester me with your trivial problems.
investor — to put (money) to use, by purchase or expenditure, in something offering potential profitable returns, as interest, income, or appreciation in value.
requester — the act of asking for something to be given or done, especially as a favor or courtesy; solicitation or petition: At his request, they left.
semester — (in many educational institutions) a division constituting half of the regular academic year, lasting typically from 15 to 18 weeks.
sequester — to remove or withdraw into solitude or retirement; seclude.
polyester — Chemistry. a polymer in which the monomer units are linked together by the group –COO–, usually formed by polymerizing a polyhydric alcohol with a polybasic acid: used chiefly in the manufacture of resins, plastics, and textile fibers.