-ous, -ious, -eous +
(Latin: full of or having the qualities of; in chemistry, a suffix denoting that the element indicated by the name bearing it, has a valence lower than that denoted by the termination -ic; as, nitrous, sulphurous, etc., as contrasted with nitric, sulphuric, etc.)
Only a small number of the hundreds of examples are presented because there just too many to include at this time.
abdominous
Having a paunch or big belly; overly corpulent [fat] in the abdominal area.
ablepharous
A congenital reduction of the eyelids (partial or complete).
abstemious
1. Moderation in eating and drinking, sober, temperate; not self-indulgent.
2. Etymology: abs-, ab-, "from, away from" plus temetum, "intoxicating drink, mead, wine".
acanthaceous
Bearing prickles or spines; having spinous processes.
acarpous
Without fruit, not bearing fruit; sterile.
acetose, acetous
1. Sour like vinegar.
2. Tasting like vinegar
acrobryous
Growing only at the tip.
acrocarpous
Bearing fruit at the end of the stalk, as some mosses.
acronychous, achronychous
Having claws, nails, or hoofs.
acrophilous, acrophile, acrophily
Pertaining to or dwelling in lofty peaks.
aculeous
Needle-like, stinging.
adenogenous
Originating from glandular tissue.
adipsous
Serving to quench thirst; such as, a food or beverage.
adventitious
1. Of the nature of an addition from without; extrinsically added, not essentially inherent; supervenient, accidental, casual.
2. Appearing casually, or out of the normal or usual place; especially, in botany of roots, shoots, buds, etc. produced in unusual parts of the plant.
aeluropodous, ailuropodus
In zoology, having feet with retractile claws like a cat.