Frequency: (1675)
(number of times this surname appears in a sample database of 88.7 million names, representing one third of the 1997 US population)
1. English: from a personal name, Old French Guillemin, Anglo-Norman French Williman, pet forms of Guillaume, Willelm (see William).
2. German (Gillmann): variant of Gille 2.
See the Key to the Dictionary or consult the General Introduction for further explanation.
