Wordnet 3.0
NOUN (1)
1.
a crusty irascible cantankerous old person full of stubborn ideas;
The Collaborative International Dictionary of English v.0.48:
Curmudgeon \Cur*mudg"eon\ (k?r-m?j"?n), n. [OE. cornmudgin,
where -mudgin is prob. from OF. muchier, mucier, F. musser to
hide; of uncertain origin; cf. OE. muchares skulking thieves,
E. miche, micher.]
An avaricious, grasping fellow; a miser; a niggard; a churl.
[1913 Webster]
A gray-headed curmudgeon of a negro. --W. Irving.
[1913 Webster]
WordNet (r) 3.0 (2006):
curmudgeon
n 1: a crusty irascible cantankerous old person full of stubborn
ideas