A very large number of nouns use irregular plural forms, including "-es" (these are usually nouns of Slavic origin), and "-er" with umlaut (e.g., מאַן "man" 'man', cf מענער "mener" 'men'; קינד "kind" 'child', cf קינדער "kinder" 'children'), or umlaut alone (e.g., האַנט "hant" 'hand', cf הענט "hent" 'hands'). Some words do not change in the plural (e.g., פֿיש "fish" 'fish'). Nouns built on the diminutive suffixes "-l" and "-ele" form the plural in "-ekh" (e.g., מײדל "meydl" 'girl', cf. מײדלעך "meydlekh" 'girls').