English
immerser
From immerse + -er.
Formed from immerse + -er
Proto-Indo-European *mesg- ‘to dip, sink’
…
Proto-Italic *mezgō
Latin mergō
Latin immergō ‘to immerse, plunge into’
Latin immersus ‘immersed’
English immerse
Today it means
noun One who immerses, as for example one who carries out baptism by immersion.
Language periods are conventional ranges, not dates for this word.
Etymograph / immerser