You searched for: “pining”
pine (verb), pines; pined: pining
1. To grow thin or weak with longing, grief, etc: If Terry continues to mourn for his dead parents, he will pine away and die, too.
2. To have a great desire or longing for someone or something: It was sad to see Bill pine all these months for his college sweetheart.
3. Etymology: From Middle English pinen, which came from Old English pinian, "to torture, to torment, to afflict"; from pin, "pain", ultimately from Latin poena, "punishment".

To pine or "to languish" is a derivative of an unrecorded Old English noun pine, "torture", originally borrowed into Germanic from pena, the post-classical descendant of Latin poena, "penalty" which is also the source of English pain.

Pine was one of the words introduced into Germanic with Christianity, and in English it was applied first to the "pains of hell". The noun has not been found in Old English; however, the verb pinian was common from an early period.

—The etymological information came from;
several sources; however, the most technical aspects are based on
information from The Barnhart Dictionary of Etymology
by Robert K. Barnhart, Editor; The H.S. Wilson Company;
New York; 1988.
This entry is located in the following unit: poen-, peno-, poino-, poin-, puni-, pain-, penal-, pent- (page 2)
Word Entries at Get Words: “pining”
pine (verb), pines; pined; pining
1. To yearn or have a strong wish for something or someone often with a nostalgic feeling: Even though Jerome had lived for many years in the new country, he still pined for his native land.
2. To ache, to long for, or to desire strongly for someone or something: After suffering so much heartbreak, Marina continued to pine for her lost child.
3. Etymology: from Latin poena (Greek poine), "punishment, penalty", which also is the basis for the English word pain.
This entry is located in the following unit: English Words in Action, Group P (page 3)