1570s, "marked by deliberation," from Latin consideratus, past participle of considerare "to look at closely, observe" (see consider). Of persons, "deliberate, prudent, given to consideration" 1580s; meaning "not unfeeling or rigorous, showing consideration for the circumstances or feelings of others" is from c. 1700. Related: Considerately; considerateness.
friends considerate enough to leave us alone
conservatorship
conservatory
conserve
consider
considerable
considerate
consideration
consign
consignment
consilience
consist