Published online by Cambridge University Press: 05 December 2008
PGmc. *-ārjaz was borrowed from Latin, and became a productive masculine agentive suffix in the older Germanic languages, gradually displacing various native agentive suffixes. Despite some assertions to the contrary, OE -estre can be shown to have been a feminine agentive suffix of Germanic origin that was also applied to certain feminine animal names. During the Old English period, a pattern obtained whereby masculine agent nouns were frequently derived using -ere (< PGmc. *-ārjaz), while the corresponding feminine agent nouns used -estre. This system was partially preserved in Modern Dutch, but died out in English as -er was increasingly used to form agent nouns of both genders.*