Where does “drainlessness” come from?

drainlessness (English) comes from English drainless, from English drain, from Middle English dreinen, from Old English drēahnian, from Proto-Germanic drauhnōną, from Proto-Germanic draugiz, from Proto-Indo-European dʰerǵʰ-, from Proto-Indo-European dʰer- — to support; to hold.

drainlessness (English): Absence of drains

Definitions

  1. Absence of drains

Ancestry of “drainlessness”, step by step

drainlessness traces back through two separate lines of ancestry.

via English drainless

StepLanguageWordMeaning
1EnglishdrainlessWithout a drain
2EnglishdrainA conduit allowing liquid to flow out of an...
3Middle Englishdreinen
4Old Englishdrēahnianto drain, strain, filter
5Proto-Germanicdrauhnōnąto strain, sieve
6Proto-Germanicdraugizhard, solid; dry
7Proto-Indo-Europeandʰerǵʰ-to strengthen; to strengthen; become hard; to...
8Proto-Indo-Europeandʰer-to support; to hold

via English Ness

StepLanguageWordMeaning
1EnglishNessAn Ulster princess and the mother of Conchobar mac Nessa and Findchoem in the Ulster Cycle of Irish mythology. Daughter of Eochaid Sálbuide. Also the mother of Cormac Cond Longas by incest with Conchobar mac Nessa
2Middle Englishnesse
3Old Englishnæsnot, not at all; not; first/third-person singular...
4Proto-Germanicnasjąfoothill; headland; cape
5Proto-Indo-Europeannéh₂snose
Every word from Proto-Indo-European dʰer-Every word from Proto-Indo-European dʰerǵʰ-Every word from Proto-Germanic draugiz