Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
petro
→
English
petrichor
(prefix)
→
English
petrochemistry
(prefix)
→
English
petrochemical
(prefix)
→
English
petrography
(confix)
→
English
petrology
(confix)
→
English
petrodollar
(prefix)
→
English
petrosphere
(prefix)
→
English
petrogenic
(confix)
→
English
petrogenic
(confix)
→
English
petrogenetic
(prefix)
→
English
petrograph
(confix)
→
English
petrogenesis
(confix)
→
English
petrographer
(confix)
→
English
petroproduct
(prefix)
→
English
petrogeologist
(prefix)
→
English
petrogeological
(prefix)
→
English
petrogeology
(prefix)
→
English
petrostate
(prefix)
→
English
petro-dictatorship
(prefix)
→
English
petrophysics
(prefix)
→
English
petrorevenue
(prefix)
→
English
petroholic
(confix)
→
English
petrodiesel
(prefix)
→
English
petrosilex
(prefix)
→
English
petrochemist
(prefix)
→
English
petrosilicious
(prefix)
→
English
petromastoid
(prefix)
→
English
petrohyoid
(prefix)
→
English
petrophilous
(confix)
→
English
petrocalcic
(prefix)
→
English
petropolitical
(prefix)
→
English
petropolitics
(prefix)
→
English
petrophysical
(prefix)
→
English
petrophysicist
(prefix)
→
English
petrosquamous
(prefix)
→
English
petrotympanic
(prefix)
→
English
petroclival
(prefix)
→
English
petroyuan
(prefix)
→
English
petroform
(confix)
→
English
petrogeny
(confix)