Sidelong
Origin
1520s, from Middle English sidlyng (early 14th century), from side + -lyng ("(frequentive)") (modern English -le ("(frequentive)")). Reanalyzed as side + long.
Online Etymology Dictionary
Full definition of sidelong
Adjective
sidelong
- Directed to the side; sideways.He cast me a sidelong glance.
- Slanting or sloping; oblique.
- Indirect; suggestive; not straightforward.She made some sidelong remarks about his manhood.