Derivations

• incredulous - credo - trust

• doctor - doceo - teach

• sentient - sentio - feel

• felicitous - felix - lucky

• mural - murus - wall

• convalesce - vale - be well

• tutelary - tutus - safe

• pacific - pax - peace

• auxiliary - auxillium - help

• ubiquitous - ubique - everywhere

• promissory - promitto - promise

• approximate - proximus - nearest

• incendiary - incendium - fire

• itinerary - iter - journey

• congenital - gens - family, race

• arson - ardeo - be on fire

• fumigate - fumus - smoke

• sinecure - sine - without

• inflammable - flamma - flame

• rapture - rapio - seize, grab

• cogitation - cogito - think, consider

• amelioration - melior - better

• imperial - imperium - empire

• claustrophobia - claudo - close

• epistle - epistula - letter

• accidental - accido - happen

• additional - addo - add

• implacable - placet - it suits, pleases