=Witan=, to know; wit, witness, wisdom, wistful. =Wyrcan=, to work; work, wright. =Wyrt=, an herb; wort, wart, orchard [wort-yard]. 8. =LATIN ROOTS.= =Acer=, sharp; acrid, acrimony, vinegar [= sharp wine]. =Acidus=, sour; acid, acidity. =Ædes=, a house; edifice, edify. =Æquus=, equal; equality, equator, adequate, iniquity, equanimity. =Æstimo=, I value; estimation, estimate, esteem. =Ager=, a field; agriculture, peregrinate. =Agger=, a heap; exaggerate. =Ago=, I do; act, agile, agency, cogent. =Alacer=, cheerful; alacrity. =Alo=, I nourish; aliment, alimony. =Alter=, the other of two; alternation, subaltern. =Altus=, high; altitude, exalt. =Ambulo=, I walk; amble, perambulator. =Amo=, I love; amity, amorous, inimical. =Anima=, the soul; animation, inanimate. =Animus=, the mind; magnanimity. =Annus=, a circle or year; annual, perennial. =Aperio=, I open; aperient, April [the opening month, the month of spring when the buds open out]. =Appello=, I call; appeal, appellation. =Aptus=, fit; apt, aptitude. =Aqua=, water; aqueduct, aquatic, aqueous. =Arbiter=, a judge; arbitration, arbitrary. =Arbor=, a tree; arboraceous, arbour. =Ardeo=, I burn; ardent, arson. =Arduus=, steep [with the idea of difficulty of attainment]; arduous. =Arma=, weapons; arms, armistice, disarm, army. =Aro=, I plough; arable. =Ars= (=art=-is), art; artificial, inertia, artisan. =Artus=, a joint; articulate, article. =Audio=, I hear; audience, audible. =Augeo=, I increase: augment, auctioneer. =Avis=, a bird; aviary. =Barba=, a beard; barber, barbel, barb. =Bellum=, war; bellicose, belligerent, rebellious. =Bibo=, I drink; imbibe, winebibber. =Bis=, twice; biscuit, bissextile. =Bonus=, good; benevolent, bounty. =Brevis=, short; brevity, abbreviate, brief. =Cado= (=cas=-um), I fall; casual, accident. =Cædo= (=cæs=-um), I cut or kill; precise, excision, decide. =Campus=, a plain; camp, encamp. =Candeo=, I shine; =candidus=, white, incandescent, candidate. =Cano=, I sing; canticle, chant, incantation. =Capio= (=capt=-um), I take; captive, accept, reception. =Caput=, the head; capital, captain. =Caro= (=carn=-is), flesh; carnal, carnival, carnivorous. =Castus=, pure; chastity, castigate, chastise. =Causa=, a cause; accuse, causation. =Caveo= (=caut=-um), I take care; caution, cautious. =Cavus=, hollow; cavity, cave, excavate. =Cedo= (=cess=-um), I yield; cede, accede, proceed. I go; procession, ancestor. =Centum=, a hundred; century, centurion. =Cerno= (=cret=-um), I notice or discern; discern, decretal, discretion. =Cingo= (=cinct=-um), I gird; cincture, succinct. =Cito=, I rouse; excite, citation.