The story
- Proto-Germanic · inherited from*lustusamaz“delightful, desirous”
- Old English · inherited from*lustsum
- Middle English · inherited fromlustsum
- English todaylustsome
From Middle English lustsum, from Old English *lustsum (attested only in Old English lustsumlīċ (“pleasant, delectable”)), from Proto-Germanic *lustusamaz (“delightful, desirous”), equivalent to lust + -some. Cognate with Middle Low German lustsām (“friendly, lovely”), obsolete Dutch lustzaam (“pleasant, beautiful, charming”), obsolete German lustsam (“pleasing, graceful”).
Etymology from Wiktionary, CC BY-SA 4.0.