Meaning

noun a concave cut into a surface or edge (as in a coastline)

noun the formation of small pits in a surface as a consequence of corrosion

noun the space left between the margin and the start of an indented line

originEtymology tree English indent Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin -ātiōlbor. Old French -ationbor. Middle English -acioun English -ation English indentation From indent + -ation.

Etymology from Wiktionary, CC BY-SA 3.0