Etymology
Advertisement
consistent (adj.)

1570s, "consisting" (a sense now obsolete), from Latin consistentem (nominative consistens), present participle of consistere "to stand firm, take a standing position, stop, halt," from assimilated form of com "with, together" (see con-) + sistere "to place," causative of stare "to stand, be standing," from PIE root *sta- "to stand, make or be firm."

Sense of "standing together in agreement, agreeing" (with with) is first attested 1640s; meaning "marked by consistency" is from 1732. The literal, physical sense survives in consistency. Related: Consistently.

Related entries & more 
Advertisement
inconsistent (adj.)

1640s, "not agreeing in substance or form;" 1650s, "self-contradictory," from in- (1) "not, opposite of" + consistent. Related: Inconsistently.

Related entries & more 
cohere (v.)

1590s, "to be consistent, to follow regularly in natural or logical order," from Latin cohaerere "to cleave together," in transferred use, "be coherent or consistent," from assimilated form of com "together" (see co-) + haerere "to adhere, stick" (see hesitation). More literal sense of "to stick, stick together, cleave" is from 1610s. Related: Cohered; cohering.

Related entries & more 
equability (n.)

1530s, from Latin aequabilitatem (nominative aequabilitas) "equality, uniformity, evenness," figuratively "impartiality," from aequabilis "equal, consistent, uniform" (see equable).

Related entries & more 
equable (adj.)

1670s, back-formation from equability or else from Latin aequabilis "equal, consistent, uniform, not varying" from aequare "make uniform" (see equate). Related: Equably; equableness.

Related entries & more 
Advertisement
immoral (adj.)

1650s, "not consistent with moral law or standards, ethically wrong," from assimilated form of in- (1) "not" + moral (adj.). In legal language it tends to mean merely "contrary to common good or reasonable order." Related: Immorally.

Related entries & more 
shortcake (n.)

also short-cake, a type of rich, crisp tea-cake made from a wide variety of recipes, the only consistent ingredient in them seems to be butter or lard to make it "short" (crumbly), 1590s; see shortening + cake (n.).

Related entries & more 
congruous (adj.)

"accordantly joined or related, fit, consistent," c. 1600, from Latin congru-, stem of congruere "agree, correspond with" (see congruent) + -ous. Shakespeare has congrue (v.), from the Latin verb. Related: Congruously; congruousness.

Related entries & more 
coherent (adj.)

1550s, "harmonious;" 1570s, "sticking together," also "connected, consistent" (of speech, thought, etc.), from French cohérent (16c.), from Latin cohaerentem (nominative cohaerens), present participle of cohaerere "cohere," from assimilated form of com "together" (see co-) + haerere "to adhere, stick" (see hesitation).

Related entries & more 
reputable (adj.)

1610s, "capable of being taken into account" (a sense now obsolete), from repute (n.) + -able. Meaning "consistent with good reputation, not mean or disgraceful" is by 1670s; of persons, "held in esteem, having a good reputation" by 1690s. Related: Reputably.

Related entries & more