“TRIHYBRID” is a valid word.

hybrida word that is composed of parts from different languages (e.g., `monolingual' has a Greek prefix and a Latin root)

birdwarm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings
dirtthe part of the earth's surface consisting of humus and disintegrated rock
tidyreceptacle that holds odds and ends (as sewing materials)
brita native or inhabitant of Great Britain
thir
birrthe basic unit of money in Ethiopia; equal to 100 cents
driba small indefinite quantity (especially of a liquid)
irid
yird
yirr

tryearnest and conscientious activity intended to do or accomplish something
bita small piece or quantity of something
hit(baseball) a successful stroke in an athletic contest (especially in baseball)
ridrelieve from
drya reformer who opposes the use of intoxicating beverages
thy
hidprevent from being seen or discovered
bidan authoritative direction or instruction to do something
ribsupport resembling the rib of an animal
ditthe shorter of the two telegraphic signals used in Morse code
dib
brr
yid(ethnic slur) offensive term for a Jew

itthe branch of engineering that deals with the use of computers and telecommunications to retrieve and store and transmit information
byso as to pass a given point
hian expression of greeting
ida state in the Rocky Mountains
bia heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically); usually recovered as a by-product from ores of other metals
tia light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys (as for airplane parts); the main sources are rutile and ilmenite

TRIHYBRID