Stress is phonemic in Yami, e.g., mapingsán ‘tasty' vs. mapíngsan ‘organized'. The default (unmarked) stress is on the ultimate syllable. All other stress has to be marked individually, e.g., masáray ‘happy', masasáray ‘every one is happy', mapasózi ‘cause to be upset', i'óya ‘angry at', mámiying ‘laugh', mamiyimíyingen ‘love to laugh', and malavlávin ‘a cry baby'.
The prefix tey- ‘most' attracts stress. Stress usually falls on the syllable following tey- ‘most', such as teymá'oya'oyaen ‘become easily upset the most', teymámiyimiyingen ‘one who loves to laugh the most', and teymápa'oya ‘most upsetting'. But words with tey- ‘such and such an amount is allocated to each unit' (e.g., teylilima ‘five for each) have ultimate syllable stress (See 9.1).
The final syllable can also be lengthened to express ‘only, again, also', such as asáa ‘the only one' (< ása ‘one').
note:Other examples are as follows: ko mangay do gák oo, ‘I am going to school, too;' ko ji ákc ii n, ‘I'm also very hungry;' ka pa kóm aa n? ‘You are going to eat again?'