sub-

(Latin: under, below [suc-, suf-, sug-, sum-, sup-, sur-, sus-]; used as a prefix)

Don't confuse the sur- in this element with the sur- in super-. Note: sub- regularly means "under", but it often changes its form as it retains its meaning:

The prefix sub- often becomes suc- before c: succumb.

The prefix sub- often becomes suf- before f: suffuse.

The prefix sub- often becomes sug- before g: suggest.

The prefix sub- often becomes sum- before m: sumptuous.

The prefix sub- often becomes sup- before p: suppression.

The prefix sub- often becomes sur- before r: surrogate.

The prefix, sub- is often simplified to su- before sp. Before c, p, and t; it is sometimes formed into sus-; as seen in suspect, suspend, suspicion, suspension, et al.

subcuticula

subcuticular

Situated beneath the epidermis, or being under the cuticle or scarfskin (the outermost layer of skin).

subcutis

A layer of connective tissue beneath the skin.

subdermal

subdivide

subdivision

subdorsal

subduction

1. The action of subduing or fact of being subdued; subjection.
2. A geological process in which one edge of a crustal plate is forced sideways and downward into the mantle below another plate.

subdue

1. To conquer and to subjugate; to vanquish, to defeat.
2. To quiet or to bring under control by physical force or persuasion.
3. To make less intense or prominent; to tone down.
4. Etymology: from Old French souduire "to seduce" from Latin subducere "to draw up" and ducere "to lead".

subepiglottic

Situated under the epiglottis (cartilaginous lidlike appendage, or connective tissue, which closes the glottis while food or drink is passing while food or drink is passing through the pharynx).

subglossal

Situated under the tongue; sublingual.

subject

subjection

subjective

subjectivity