hoi

Meaning

1. (Netherlands, informal) A greeting acknowledging someone’s arrival or presence, comparable to English hey, hi
2. (Netherlands, informal) A farewell acknowledging someone's departure, comparable to English goodbye, bye
3. (dated) An exclamation of joy.

Concepts

hello

👋

hi

👋

hey

👋

cheerio

cheers

howdy

Synonyms

hallo

👋

dag

gegroet

goedendag

👋

hey

later

tot ziens

hé

👋

doeg

👋

ciao

salu

tot later

ik zie je

salut

slukes

👋

goede dag

doei

👋

ey

Translations

salut

👋

oi

👋

hola

👋

ciao

hallo

👋

hola

👋

olá

👋

ave

merhaba

👋

γεια

salve

bonjour

👋

salve

selam

👋

Pronounced as (IPA)

/ɦɔi̯/

Etymology

Borrowed from English: ahoy

Borrowed from Middle English: hoy

In summary

Possibly a spontaneous alteration of the interjection ho. The use as a joyful exclamation is attested from the 16th century; use as an informal greeting appears only in the 20th century.
Another possibility is the borrowing from English ahoy or Middle English hoy; See also ahoi.