لَمْ
1.
with an aorist following it is often to be rendered in English by the preterperfect: example, لَمْ أَرَهُ
مُذُ يَوْمَانِ
I have not seen him for two days.
2.
لَمْ يَضْرِبْ
He did not beat. (S, &c.) See also لَمَّا.
3.
أَلَمْ: see the latter half of article أَلَا; and the former part of article أَمَا.
4.
لَمَّا as a particle of exception [is equivalent to our But; meaning both except and, after an oath or the like, only, or nothing more than; and] is put before a nominal proposition; as, إِنْ كُلُّ نَفْسٍ
لَمَّا عَلَيْهَا حَافِظٌ [There is not any soul but over it is a guardian, (Qur'an, 86:4,)] according to those who pronounce the م with teshdeed: and before a verb which is literally, but not in meaning, a preterite; as in أَنْشُدُكَ اللّٰهَ لَمَّا
فعَلْتَ [I conjure, or beg, or beseech, thee by God but that thou do such a thing], i. e. مَا أَسْأَلُكَ إَلَّا
فِعْلَكَ [I do not ask of thee anything save thy doing such a thing]. (Mughnee.) See its synonym إِلَّا. In the Qur'an, 38:13, according to one reading, it occurs before a verb which is a preterite literally and in meaning.
5.
لَمَّا, according to Ibn-Málik, is synonym with
إِذْ: [and sometimes, like إِذْ, it means Since, or because:] one may say, لَمَّا
أَكْرَمْتَنِى أَمْسِ أَكْرَمْتُكَ اليَوْمَ: but this is said to mean لَهَّا ثَبَتَ اليَوْمَ إِكْرَامُكَ لِى أَمْسِ أَكْرَمْتُكَ. (Mughnee.) See also an example voce رَزَقَ.
6.
لَمَّا
يَضْرِبْ
He has not yet beaten. (S, &c.) See also لَمْ.