pineyoudaoicibaDictYouDict[pine 词源字典]
pine: [OE] English has two words pine. The treename was borrowed from Latin pīnus, which some have traced to the Indo-European base *pīt- ‘resin’ (source of English pituitary [17]). Pine-cones were originally called pineapples [14], but in the mid 17th century the name was transferred to the tropical plant whose juicy yellow-fleshed fruit was held to resemble a pinecone.

The Latin term for ‘pine-cone’ was pīnea, whose Vulgar Latin derivative *pīneolus has given English pinion ‘cog-wheel’ [17], and it seems likely that English pinnace [16] comes via French and Spanish from Vulgar Latin *pīnācea nāvis ‘ship made of pine-wood’. And the pinot noir [20] grape is etymologically the grape with ‘pine-cone’-shaped bunches. Pine ‘languish’ is a derivative of an unrecorded Old English noun *pīne ‘torture’, originally borrowed into Germanic from pēna, the post-classical descendant of Latin poena ‘penalty’ (source of English pain).
=> pinion, pinnace, pituitary; pain[pine etymology, pine origin, 英语词源]