handler

Mane (Îngilîzî)

1. (literally) One who handles something (especially manually) or someone.
2. (in-compounds) A controller, trainer, someone who handles a specified thing, animal or person (especially a prizefighter).
3. (in-compounds) An advisor or manager providing guidance to a person occupying public office or a prominent position.
4. A subroutine that handles a particular situation such as an event or exception.

Hevwate

manager

coach

processor

manipulator

operator

animal trainer

trainer

benefactor

chief

coacher

conductor

contributor

director

helper

paraprofessional

practitioner

racker

second

2nd

supervisor

supporter

tamer

treater

actor’s assistant

processing element

handling device

agent

processing program processor

aide

arm

assistant

attendant

attender

auxiliary

Werger

treinador

behandelaar

verantwoordelijke

entrenadora

dresseur

adiestrador

Anwender

ensinistrador

entrenador

Flugsimulator

administrateur

cadre

car

directeur

Handler

Wekî (IPA) tê bilêvkirin

/ˈhæn.dlə/

Etîmolojî (Îngilîzî)

Ji Middle English mîras hatiye girtin: handler

In summary

From Middle English handler, handiller, equivalent to handle + -er.