Meaning

adverb near that time or date

adverb near that place

originThe adverb is derived from Middle English there-aboutes, þare aboutes (“of a place or an object: around there, in its vicinity; of time: about then, around that time”) [and other forms], from ther (“in that place, in those places, there; on that; thither, to that place; from there, thence; at that time; thereupon; in that situation, under those circumstances; in that case, with regard to that”)…

Etymology from Wiktionary, CC BY-SA 3.0