تشدّد
1.
He acted, or behaved, with forced hardness, firmness, strength, vigour, hardiness, courage, vehemence, severity, strictness, or rigour; he exerted his strength, force, or energy; strained, or strained himself, or tasked himself severely; synonym تَصَلَّبَ; (A and TA in article صلب;) and جَهَدَ
نَفْسَهُ; (L;) [فِى الشَّىْءِ
in the thing; as also فِيهِ
شَادَّ; for] المُشَادَّةُ فِى الشَّىْءِ and التَّشَدُّدُ فِيهِ signify the same: (S, L, K: * [see an example of تشدّد in the first paragraph of article جلد:]) [and] both of these phrases signify the showing hardness, &c., in the thing. (PS.) You say also تشدّد لِلْأَمْرِ
He applied himself with hardness, firmness, vigour, hardiness, severity, or rigour, to the affair. (MA.) And تَشَدَّدَتِ القَيْنَةُ
The slavesongstress strained herself, or tasked herself severely, in raising her voice in singing. (L.)
2.
Also He (a man) was, or became, hard, or difficult: you say, سَأَلْنَا فُلَانًا حَاجَةً فَتَشَدَّدَ عَلَيْنَا [We asked of such a one a thing wanted, and he was hard, or difficult, to us]. (TA in article وعر.)