Boy name origins & meanings Latin : MercifulLatin : GentleCzechoslovakian : Gentle Boy name variations Clement Clements Clemens Clemmons Clemon Clem Clemendo Clemente Clementino Clementius Clemmie Clemmy Klemens Klement Klementos Klemenis Klemet Klimiek Family name origins & meanings Czech : from the personal name Kliment, from Latin Clemens (see Clement).