köken: From Middle Persian [script needed] (ʾpwstn' /ābustan, ābistan/), from [script needed] (ʾpws /ābus/, “pregnant”), from Proto-Iranian *āpuθra- (“pregnant”), from *puθráh (“son”), from Proto-Indo-Iranian *putrás (“boy; son”), from Proto-Indo-European *putlós.
köken: From Middle Dutch drachtich. Equivalent to dracht + -ig. Compare German trächtig, Middle Low German drachtich, from which latter Danish drægtig.
From Middle High German trehtic, trehtec, related to Middle Low German drechtich, drachtich. Equivalent to Tracht (“something carried”) + -ig. Cognate with Dutch drachtig, German Low German drachtig, Danish drægtig, Norwegian Bokmål drektig, Norwegian Nynorsk drektig, Swedish dräktig.