The story
- Proto-Indo-European*h₂ep
- Proto-Indo-European*h₂epó
- Proto-Italic*ap
- Latinab
- Latinab-
- Proto-Indo-European*srebʰ-
- Proto-Indo-European*srobʰéyeti
- Proto-Italic*sorβeō
- Latinsorbeō
- Latinabsorbeō
- Latinabsorptiō
- English todayabsorption
First attested in 1597. From Latin absorptiō (“a sucking in”), from absorbeō (“absorb”). Morphologically absorb + -tion.
First known use, by meaning
- Attested from the late 16ᵗʰ century until the mid 18ᵗʰ century. engulfing; swallowing up, as of bodies or land.
- First attested in the mid 18ᵗʰ century. assimilation; incorporation.
- First attested in the mid 18ᵗʰ century. the imbibing or reception by molecular or chemical action, of radiant energy; the process of being neutrons being absorbed by the nucleus; interception.
- First attested in the mid 18ᵗʰ century. in living organisms, the process by which the materials of growth and nutrition are absorbed and conveyed to the tissues and organs; taking in by various means, such as by osmosis.
- First attested in the mid 19ᵗʰ century. Entire engrossment or occupation of the mind.
- First attested in the mid 20ᵗʰ century. Mental assimilation.
Etymology from Wiktionary, CC BY-SA 4.0.