אֲרוּ (ʾărû) is
an Aramaic interjection
meaning lo. It appears
5 times
in 1 book of the Hebrew Bible
(Strong's H718).
Also rendered
behold!
Same Hebrew root (TWOT 2604)
Range of meaning (TWOT 2604)lo; lo!; behold
Full entry: Brown-Driver-Briggs and Strong's
אֲרוּinterjection
Strong's H718אֲרוּ: lo! KJV:behold, lo.
Meanings: Brown-Driver-Briggs (1906) and Strong's Hebrew Dictionary (1890), public domain, via the Open Scriptures Hebrew Bible Project (CC BY 4.0). TWOT numbers for reference only.