Where does “attentionless” come from?

attentionless (English) comes from English attention, from Middle English attencioun, from Latin attentio, from Latin -tiō, from Latin dissertātiō, from Latin dissertus, from Latin disserere, from Latin dis- — small stone, pebble; gravel, rubble.

attentionless (English): Without attention

Definitions

  1. Without attention

Ancestry of “attentionless”, step by step

attentionless traces back through two separate lines of ancestry.

via English attention

StepLanguageWordMeaning
1EnglishattentionMental focus; An action or remark expressing...
2Middle Englishattencioun
3Latinattentioattention, attentiveness
4Latin-tiōtion, -ation, -ing
5Latindissertātiō(spoken) dissertation, discourse, disquisition
6Latindissertusarranged, disposed; explained
7Latindissereresecond-person singular future passive indicative...
8Latindis-asunder, apart, in two; reversal, removal;...
9Latincalceusshoe
10Latincalxlimestone; chalk; the finish line
11Ancient Greekχάλιξsmall stone, pebble; gravel, rubble

via English less

StepLanguageWordMeaning
1EnglishlessTo a smaller extent or degree; comparative form...
2Middle Englishlesfalse; lying; deceptive; falsehood; a lie
3Old Englishlēasfalse, lax; false, void, loose; devoid of, loose...
4Proto-Germanic*laus
Every word from Ancient Greek χάλιξ