noun, plural chas·sis [chas-eez, shas-] /ˈtʃæs iz, ˈʃæs-/.
- chaste tree,
Origin of chassis
noun plural -sis (-sɪz)
Word Origin for chassis
"base frame of an automobile," 1903, American English; earlier "window frame" (1660s), from French châssis "frame," Old French chassiz (13c.) "frame, framework, setting," from chasse "case, box, eye socket, snail's shell, setting (of a jewel)," from Latin capsa "box, case;" see case (n.2) + French -is, collective suffix for a number of parts taken together. Cf. sash (n.2).