WALLAH
wallah
(noun) usually in combination: person in charge of or employed at a particular thing; “a kitchen wallah”; “the book wallah”
Source: WordNet® 3.1
Etymology 1
Noun
wallah (plural wallahs)
(India) A servant or other person responsible for something, often specified before it, for example kitchen wallah.
(British, slang) A guy or bloke.
Etymology 2
Adverb
wallah (not comparable)
(Islam) by God (Allah); may God be my witness used in making a solemn oath
Etymology 3
Interjection
wallah
Misspelling of voilĂ .
Source: Wiktionary
Wal"lah, n. (Zoöl.)
Definition: A black variety of the jaguar; -- called also tapir tiger.
[Written also walla.]
Source: Webster’s Unabridged Dictionary 1913 Edition