Etymology
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aptitude (n.)

early 15c., "tendency, likelihood," from Late Latin aptitudo (genitive aptitudinis) "fitness," noun of quality from Latin aptus "joined, fitted" (see apt). The meaning "natural capacity to learn" is by 1540s; that of "state or quality of being fit (for a purpose or position)" is from 1640s. Related: Aptitudinal. A doublet of attitude.

updated on September 24, 2022

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Definitions of aptitude from WordNet

aptitude (n.)
inherent ability;
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.

Dictionary entries near aptitude

apse

apsis

apt

apterous

apteryx

aptitude

aptly

aptness

aqua-

aqua

aqua fortis