(Greek > Latin: suffix; from French -aque, or directly from Latin -acus, from Greek -akos forming adjectives. This suffix was used to form names of arts and sciences in Greek and it is now generally used to form new names of sciences in English; meanings, "related to, of the nature of, pertaining to, referring to")

(Dictionaries are often more confusing than they are at clearly defining the meanings of words.)

(Latin: madness; crazy, rave, deranged; literally, to go off the furrow; from delirare, "to turn aside from the furrow", whence arose the meanings "to deviate, to become deranged, to be crazy, or to be delirious")

(Latin: a suffix that forms English adjectives from Latin adjectives ending with -is or -ius with meanings about "pertaining to, relating to", or "characterized by")

(contronyms or words which have definitions that are self-antonyms; that is, which have two meanings that are the opposites of each other)

(Greek: leukos, white; the primary meaning now is the color "white"; but it also includes the meanings of "light, clear, bright")

(Latin: originally, country area, province; villager; more recent meanings: heathen, atheist; idolatrous, idol worshippers; heretic, heretical)

(linguistic terms for words with two or more meanings; usually, multiple meanings of a word or words)

(Greek: a person who crouches; than extended to a beggar, poor; paupers; modernized meanings: street people, homeless, vagrant, living in poverty)

(Latin: animating, enlivening; vigorous, vigor, active; to be alive, activity, to quicken; then a quickening action of growing; a specific sense of "plant cultivated for food, edible herb, or root" is first recorded in 1767; the differences between the meanings from its original links with "life, liveliness" was completed in the early twentieth century, when vegetable came to be used for an "inactive person".)

(Latin: videre, "to see"; plus words with other related meanings: to notice, noticing, noticed; observe, observing, observed; look, looking, looked; perceive, perceiving, perceived, perception; see, seeing, saw, seen, sight; view, viewing, viewed; manifest, manifesting, manifested; reveal, revealing, revealed, revelelation)