Protrusion
/prəˈtruːʒən/noun
The act or result of extending outward beyond a surrounding surface or boundary.
Did you know?Protrusion comes from Latin trudere, “to thrust or push,” the same root behind words such as intrude and extrude—language preserving the physical force of motion.
Etymological Timeline
Proto-Indo-European
PIE
*trewd- / *trud-
“To push, press, or thrust”
Classical Latin
Latin
trūdere
“To thrust, push, or drive forward”
Classical Latin
Latin
prōtrūdere
“To thrust or push outward or forward”
Classical Latin
Latin
prōtrūsus
“Thrust forward or pushed out”
Late Latin
Latin
prōtrūsiō
“A pushing forward or thrusting out”
17th Century
English
protrusion
“The act or condition of projecting outward”